Deuteronomy 29:16-20 Meaning: A Root That Produces Bitter Poison
16(for you know how we lived in the land of Egypt, and how we came through the middle of the nations through which you passed;
17and you have seen their abominations and their idols of wood, stone, silver, and gold, which were among them);
18lest there should be among you man, woman, family, or tribe whose heart turns away today from Yahweh our God, to go to serve the gods of those nations; lest there should be among you a root that produces bitter poison;
19and it happen, when he hears the words of this curse, that he bless himself in his heart, saying, “I shall have peace, though I walk in the stubbornness of my heart,” to destroy the moist with the dry.
20Yahweh will not pardon him, but then Yahweh’s anger and his jealousy will smoke against that man, and all the curse that is written in this book will fall on him, and Yahweh will blot out his name from under the sky.
16(For ye know how we have dwelt in the land of Egypt; and how we came through the nations which ye passed by;
17And ye have seen their abominations, and their idols, wood and stone, silver and gold, which were among them:)
18Lest there should be among you man, or woman, or family, or tribe, whose heart turneth away this day from the Lord our God, to go and serve the gods of these nations; lest there should be among you a root that beareth gall and wormwood;
19And it come to pass, when he heareth the words of this curse, that he bless himself in his heart, saying, I shall have peace, though I walk in the imagination of mine heart, to add drunkenness to thirst:
20The Lord will not spare him, but then the anger of the Lord and his jealousy shall smoke against that man, and all the curses that are written in this book shall lie upon him, and the Lord shall blot out his name from under heaven.
16(for ye know how we dwelt in the land of Egypt, and how we came through the midst of the nations through which ye passed;
17and ye have seen their abominations, and their idols, wood and stone, silver and gold, which were among them);
18lest there should be among you man, or woman, or family, or tribe, whose heart turneth away this day from Jehovah our God, to go to serve the gods of those nations; lest there should be among you a root that beareth gall and wormwood;
19and it come to pass, when he heareth the words of this curse, that he bless himself in his heart, saying, I shall have peace, though I walk in the stubbornness of my heart, to destroy the moist with the dry.
20Jehovah will not pardon him, but then the anger of Jehovah and his jealousy will smoke against that man, and all the curse that is written in this book shall lie upon him, and Jehovah will blot out his name from under heaven.
16for ye have known how ye dwelt in the land of Egypt, and how we passed by through the midst of the nations which ye have passed by;
17and ye see their abominations, and their idols, wood and stone, silver and gold, which are with them,
18lest there be among you a man or woman, or family or tribe, whose heart is turning to-day from Jehovah our God, to go to serve the gods of those nations, lest there be in you a root fruitful of gall and wormwood:
19`And it hath been, in his hearing the words of this oath, and he hath blessed himself in his heart, saying, I have peace, though in the stubbornness of my heart I go on, in order to end the fulness with the thirst.
20Jehovah is not willing to be propitious to him, for then doth the anger of Jehovah smoke, also His zeal, against that man, and lain down on him hath all the oath which is written in this book, and Jehovah hath blotted out his name from under the heavens,
16(for ye know how we dwelt in the land of Egypt, and how we came through the nations which ye passed;
17and ye have seen their abominations, and their idols, wood and stone, silver and gold, which were among them);
18lest there should be among you man, or woman, or family, or tribe, whose heart turneth away this day from Jehovah our God, to go and serve thegods of these nations; lest there should be among you a root that beareth gall and wormwood,
19and it come to pass, when he heareth the words of this curse, that he bless himself in his heart, saying, I shall have peace, though I walk in the stubbornness of my heart, to sweep away the drunken with the thirsty.
20Jehovah will not pardon him, but the anger of Jehovah and his jealousy will then smoke against that man, and all the curse shall be upon him that is written in this book; and Jehovah will blot out his name from under the heavens;
Meaning in one sentence
Moses warns Israel against secret apostasy, using their firsthand experience with idolatry. A root of bitterness brings God's judgment.
Context
This passage comes from the covenant renewal ceremony Moses led in Moab, just before the people entered the Promised Land. He had already recited the law and the blessings and curses. Now he calls everyone, men, women, children, even foreigners among them, to recommit themselves to God. Moses reminds them of what they witnessed with their own eyes: the idols of Egypt and the nations they passed through on their journey. He is not teaching them new information. He is using their memory to anchor a warning. The danger is not just outright rebellion. It is the secret turn of the heart, the quiet root of bitterness that grows in someone who thinks they can follow God outwardly while clinging to something else inside.
Key Words
Three phrases in this passage carry the weight of the warning. First, the root that produces bitter poison. Translations call it gall and wormwood, plants known for their sharp, deadly taste. The image is of something that looks small and hidden underground but spreads poison through the whole plant. One commentator calls it “an evil heart of unbelief departing from the living God,” quoting Hebrews 3:12. The root is not the visible sin; it is the quiet decision that no one else sees.
Second, the person blesses himself in his heart. He hears the curse and says, “I shall have peace.” This is not a prayer. It is self-congratulation, a private deal a person makes with himself: ‘God will not see. God will not act. I am safe.’ The commentators note how common this self-flattery is, the soul’s way of quieting its own alarm.
Third, God’s anger and jealousy smoke against that person. Smoke suggests a fire that is real even if not yet fully seen. It is building, and it will break out. The same word appears in Psalm 74:1, where the psalmist cries out at the smoke of God’s anger against His flock. It is a picture of holy passion that will not be ignored.
How Christians Read This Verse
Christians across traditions have read this passage as a warning against the seduction of secret sin. Reformed commentators like Calvin emphasize that Moses is confronting the human habit of self-deception, the way we flatter ourselves into thinking God will overlook our small compromises. Wesleyan writers such as Adam Clarke connect the “root of bitterness” directly to unbelief that departs from God, following the warning in Hebrews. The ancient Jewish tradition preserved in the Targum sees the root as a poisonous plant that grows unseen. Anglican scholars note that the phrase “to destroy the moist with the dry” has been interpreted as the sinner pulling down not only himself but also those around him who may be drawn into his false sense of safety. All point to the same truth: a hidden turn of the heart matters to God, and it matters to the whole community.
A common misunderstanding
Some readers take the phrase “bless himself in his heart” to mean a kind of positive self-talk or faith confession, speaking peace over his life. In fact, the context shows the opposite. This man hears the words of the covenant curse and deliberately reassures himself that he can walk in stubbornness and still be safe. It is not faith; it is presumption. Moses is describing self-deception, not confidence in God. The blessing he pronounces on himself is a lie he believes so that he can keep sinning without feeling the weight of it.
Living This Out
Think about the small compromises you have made peace with. Maybe it is something you tell yourself: ‘God understands. Everyone does this. I am still a good person.’ Moses calls that a root, something that appears small but grows with time. What you water in secret will eventually bear fruit. This week, ask God to show you the places where you have blessed yourself in your heart instead of letting His Word search you. You do not have to fix it alone. Telling a trusted friend or pastor about a hidden struggle can break the root’s power. The warning in this passage is severe, but it is given so that you might turn and find mercy, not so that you would be afraid to look.
Main takeaway: Secret self-deception about sin is not safety; it invites the very judgment we think we have escaped.
For Families
For ages 5, 8
Have you ever hidden a broken toy and hoped no one would notice? That is what this verse talks about. We can think we are hiding a bad choice in our heart, but God sees it. He wants us to tell Him and not pretend everything is fine.
For ages 9, 12
Moses warned about a root that looks small but grows into something poisonous. It starts when you tell yourself, ‘God won’t mind this one time,’ even though you know it is wrong. The longer you keep that secret, the more it spreads. That is why God wants you to be honest right away. He is not trying to catch you; He is trying to protect you from a root that will hurt more the longer it grows.
Questions People Ask
What does the 'root that produces bitter poison' mean in this passage?
Commentators see it as a person or influence that secretly turns away from God, like an unseen plant growing poison underground. It can refer to an individual whose heart is full of unbelief or idolatry, and whose attitude spreads harm to others.
What does 'bless himself in his heart' mean?
It means a person reassures himself that he is safe from God's judgment even while he stubbornly follows his own desires. He hears the covenant curses but tells himself they do not apply to him. It is self-deception, not faith.
Is God's promise to 'blot out his name' a threat of total destruction?
In the Old Testament, blotting out a name from under heaven means removing someone from the community of God's people and from the promised blessings. It is a severe warning, but it was given to lead people to repentance, as the whole covenant ceremony invited them to choose life.
Why does Moses recall Israel's experience in Egypt and with the nations?
Moses uses their own history to ground the warning. They saw the idols of Egypt and the nations they passed through. He is saying, 'You know from experience how real these temptations are. Do not let a seed from that world take root in your heart.' Memory becomes a safeguard.
What does 'to destroy the moist with the dry' mean?
This phrase is difficult. Some understand it as a proverb meaning the sinner will sweep away both the innocent and the guilty, like a fire that destroys green wood right along with dry. Others read it as 'adding drunkenness to thirst,' describing a person who indulges in sin without restraint. Either way, it pictures judgment that overflows and consumes everything.
For pastors & researchers
Hebrew interlinear, 8 commentaries & word study