Years ago my wife came home from a party with a small bottle of concentrated cinnamon oil. Someone had told her about an experiment, and she asked if she could try it on me. I laughed and let her rub a drop on the bottom of my foot. Within ten or twelve minutes, the taste buds on my tongue were popping with the flavor of cinnamon. The oil had traveled from the sole of my foot, through the skin, into the bloodstream, and up to my mouth. I had not swallowed a thing. The chemistry of my body did all the work without my permission.

That little kitchen experiment is harmless and a bit funny. The principle behind it is not. Whatever touches the skin can be carried to the heart. If a five-gallon bucket of Agent Orange were sitting at the front of the room and someone invited a line of people to come up and dip their hands in it, no one would step forward. We understand that some things, once absorbed, do not stay where they were applied. They travel. They contaminate. They kill slowly and from the inside.

There is a poison like that for the soul, and the author of Hebrews names it directly.

“Strive for peace with everyone, and for the holiness without which no one will see the Lord. See to it that no one fails to obtain the grace of God; that no ‘root of bitterness’ springs up and causes trouble, and by it many become defiled.” (Hebrews 12:14–15)

Bitterness is the poison that no one volunteers to drink, and that almost everyone ends up absorbing through the skin of an unresolved wound.

The Wound Is Not the Sin

It needs to be said up front: being hurt is not a sin. People will hurt you. That is not a worst-case scenario, it is the ordinary weather of a fallen world. Spouses will speak words they cannot unsay. Parents will favor one child in ways the others can feel. Friends will betray a confidence. Coworkers will take credit. Churches will disappoint. Pastors will fail. The list of people who can wound you is identical to the list of people you know.

Paul names this plainly in Titus, looking back at his own life and at all of us with him:

“For we ourselves were once foolish, disobedient, led astray, slaves to various passions and pleasures, passing our days in malice and envy, hated by others and hating one another.” (Titus 3:3)

That is the human room we are standing in. Hated and hating. Wounded and wounding. The sin is not that the wound happened. The sin is what we choose to do with it after the bleeding starts.

A wound left alone in the air will scab over and heal. A wound that gets picked at, prodded, replayed, and worried over does not heal. It festers. Bitterness is the festering. It is the slow, deliberate refusal to let the cut close, because closing it would feel like letting the other person off the hook. The logic underneath bitterness, if you ever drag it into the light, sounds something like this: I will punish them by perpetually rehashing what they did to me. The trouble with that logic is that the only person being punished is the one doing the rehashing.

The Tools Were Already in the Bag

Hebrews 12:15 says something easy to skim past. The warning about a root of bitterness is preceded by another warning: see to it that no one fails to obtain the grace of God. The two are connected. Bitterness, in this passage, is not first a failure of feeling. It is a failure of reception. It is what happens when the grace God has already made available sits unused while we try to handle the wound on our own.

Think of it like a tool bag. If a man owns a full set of tools and his sink is leaking and he sits in the kitchen with his arms crossed letting the floor flood, you would not say his problem is the leak. The leak is the occasion. The problem is that the tools are in the bag and the bag is on the shelf. God has given his people a complete kit for moments of hurt. Saving grace to make us his in the first place. Serving grace when we need to step up. Sanctifying grace when we need to grow up. Suffering grace when we need to bear up. Each one is offered, each one is sufficient, and each one has to be reached for.

Paul knew this intimately. He had something in his life so painful he begged God three times to take it away. The answer came back not as removal but as supply:

“My grace is sufficient for you, for my power is made perfect in weakness.” (2 Corinthians 12:9)

Paul could have built a monument of resentment out of that thorn. He could have nursed the question of why God refused to remove what was clearly causing him misery. Instead he leaned into the grace that was offered. That is the move bitterness refuses to make. Bitterness assumes the wound is bigger than the supply. Grace insists the supply is always enough, even when it does not feel like enough.

The quiet promise of 2 Corinthians sits underneath all of this:

“And God is able to make all grace abound to you, so that having all sufficiency in all things at all times, you may abound in every good work.” (2 Corinthians 9:8)

All grace. All sufficiency. All things. All times. The grammar leaves no exceptions. The only thing that can keep the supply from reaching the wound is the closed hand of the wounded.

Where the Root Goes Looking for Soil

Hebrews calls bitterness a root, and roots need soil. They do not grow in midair. The manuscript points to two kinds of ground where the root finds something to grab onto. They are old, they are common, and most of us can locate ourselves in at least one of them on any given week.

The first is lust, in the broad sense of strong desire for what someone else has. The second is loss, the ache of having held something and watched it slip away. Both are forms of wanting that has nowhere to go. Both are doors the enemy walks through when the door is left propped open.

When the Root Grows from Wanting

Bitterness from lust is the bitterness of comparison. It is what curdles in a heart that keeps a careful ledger of everyone else’s life and finds its own column short. Sometimes the wanting is about prominence: the recognition, the respect, the seat at the table, the followers on a screen. The story of Korah in Numbers 16 is the old version of this. A clan leader looked at Moses and decided Moses had too much, that the honor he was receiving from God and from the people belonged in part to him. He gathered allies, lodged a complaint that sounded spiritual on the surface, and ended the day swallowed by the ground. The bitterness was not over a doctrinal disagreement. It was over a seat.

The modern version trades robes and tents for feeds and follower counts. Someone watches another person rise and cannot stomach it. The resentment finds a microphone, sometimes literal, often digital, and starts looking for ways to drag the other person down a peg. A slander here, an unkind insinuation there, a screenshot passed along with just enough context stripped to wound. The world calls this discourse. Scripture calls it a root.

Sometimes the wanting is about possessions. Ahab wanted Naboth’s vineyard, sulked when he could not have it, and let the bitterness move through Jezebel’s hands into a murder (1 Kings 21). The honest version of this in most of our hearts is less dramatic and more constant. Someone else has the marriage, the kids, the house, the health, the career, the ease. The hatred dresses itself in language that sounds like critique. They act like they have the perfect family. I hope it falls apart soon. That is the root, and the soil is wanting what is not ours.

The hardest version of lust-rooted bitterness is the wanting of another person’s priority. Joseph’s brothers wanted their father’s affection and could not get it, so they directed the bitterness toward the brother who could. The story is ancient, the dynamic is not. A wife who feels invisible in her own kitchen. A husband who works every hour he has and feels appreciated by no one. A teenager who watches another teenager get the attention. An employee who carries the weight and watches someone else collect the praise. The wound in each case is real. The bitterness is what happens when the wound is fed instead of healed.

When the Root Grows from Losing

Loss is the other soil. Saul had been the most celebrated man in Israel until the songs started naming David’s name louder than his own, and from that moment forward the bitterness ate him alive. He spent the rest of his life chasing a young man who had never wished him harm, because the loss of position is its own kind of grief and grief untended becomes resentment.

Job’s wife is the other end of the same spectrum. Everything had been taken, and her counsel to her grieving husband was to curse God and die. She voiced, in the worst moment of her family’s life, the exact accusation Satan had predicted Job would make. Loss has a way of putting words in our mouths that we never thought we would say.

What have you lost? The honest answer for most of us is a list. Health. Independence. A friendship. A marriage. A parent. A pregnancy. A reputation. A version of yourself you used to recognize in the mirror. Loss is not a failure of faith. It is a fact of living long enough in a broken world. The question Hebrews puts to us is not whether the loss happened, but what is growing now in the soil it left behind.

A man who used to be in his prime can look back and grow bitter that the world no longer treats him with the respect it once did. A mother whose children have moved on can grow bitter that the role she poured herself into has quietly ended. A worker who lost a job can grow bitter at the company, the industry, the economy, the younger person hired to replace him. Each of these wounds is real. None of them has to become a root.

I think of the testimony of a man named Ron Hamilton, who lost an eye to cancer and could have spent the rest of his life cataloguing that loss. A child once told him that with the patch he looked like a pirate. He took the name, started writing songs under it, and gave the church decades of music about the goodness of God in trial. One of his lines reads, God never moves without purpose or plan, when trying a servant and molding a man. The eye was gone. The root did not grow. The soil produced something else entirely because the grace was reached for.

The Honest Conversation in the Mirror

It is easy to read about bitterness and locate it confidently in someone else. The angry coworker. The relative who will not let the old offense die. The former friend who posts the thinly veiled jabs. The pastor who left in a cloud of resentment. The neighbor who turned cold for reasons no one quite remembers. The diagnosis is always crisp when the patient is across the room.

The harder work is the conversation in the mirror. Bring to mind the situation that tempts you most toward bitterness. The face that comes up first when you think about being hurt. How is that battle going? Do you replay the conversation in your head when you are driving alone? Do you compose, on the way to the grocery store, the speech you would give if you ever got the chance to tell them what they did to you? Do you find yourself rehearsing the case for the prosecution, even when no one has asked you to make it?

I cannot write any of this as someone who has graduated from the struggle. I am a student of it, not a master of it. I have been hurt, misrepresented, lied to, lied about. The temptation toward bitterness is a weekly companion. The verses in Hebrews and Ephesians are not theoretical for me, they are the ground I have to keep walking on. There is no clean trick that removes the temptation. There is a Savior whose grace is sufficient, and there is a daily decision to reach for it.

Ephesians 4 puts the alternative in plain words:

“Let all bitterness and wrath and anger and clamor and slander be put away from you, along with all malice. Be kind to one another, tenderhearted, forgiving one another, as God in Christ forgave you.” (Ephesians 4:31–32)

The instruction to forgive is not a sentimental add-on. It is the antidote tied to the diagnosis. Bitterness is put away by being replaced. Kindness, tenderheartedness, and forgiveness move into the space the resentment used to occupy. The model is not our willpower. The model is Christ, who forgave a debt that was actually owed by people who had actually done the wounding.

What the Root Costs When It Grows

Hebrews adds a sober line to its warning: by it many become defiled. Bitterness does not stay in one heart. It transmits. It moves from a spouse to a marriage to children who grow up under the cloud of it. It moves from a member to a small group to a church. It moves from a parent to a grown child who inherits the grudge without ever knowing the original wound. The root that started as a private rehearsal becomes a poison that touches everyone in range.

The cost is measured in things you can name. Marriages that did not have to end. Teenagers who rebelled against a Christianity they had only ever seen lived bitterly. Extended families that no longer gather. Churches that split over wounds no one will say out loud. Pastors who left ministries they were called to. Missionaries who came home from fields they loved. Almost none of it began as bitterness. It began as a wound. The wound was nursed instead of healed, and the root did its work in the dark.

The good news of Hebrews 12 is that the warning is given before the harvest. The grace is offered before the root has gone too deep. The cinnamon oil principle works in reverse too. What you absorb deliberately into your soul will travel, will spread, will reach places you did not know it could touch. Replace the resentment you have been carrying with the grace that has been on offer the whole time, and the same chemistry of the heart that was carrying poison will start to carry something else.

The wound you cannot stop replaying is real. The grace that meets you in it is more real, and it has been sufficient for two thousand years of people who finally let it in. Reach for it. Use the tools that have been in the bag the whole time. The root does not have to grow.

2026.04.26 / The Blight of Bitterness / Pastor Brent Stille