Psalm 5:9 describes the speech of people who appear friendly but cannot be trusted. David says their words contain no faithfulness, their hearts are set on ruin, and their talk is as dangerous as a grave left open. He wrote this psalm as a prayer to the LORD in the middle of real opposition, and he speaks about his enemies while bringing their behavior before God.
For there is no faithfulness in their mouth. Their heart is destruction. Their throat is an open tomb. They flatter with their tongue.
Psalm 5:9 (WEB)
What Psalm 5:9 Means
The verse begins with a plain charge: “there is no faithfulness in their mouth.” The word faithfulness refers to reliability, the quality of keeping one’s word. David is saying that when these people speak, you cannot count on what they say to be true or to be kept. Their promises and compliments carry no solid weight.
Next, David moves from speech to the heart. He says the heart is destruction, meaning that what they intend inwardly is harm. Then he uses the image of a throat as an open tomb, a picture of something that consumes and brings death. The point is that their words, which look harmless on the surface, pull others toward ruin. The final line describes flattery, smooth words meant to win trust while hiding bad intentions.
The verse does not promise that David will personally avenge himself, nor does it give a formula for dealing with difficult people. It is a description of how things look from a wounded position, and it asks God to see the truth that others have hidden.
The Context of Psalm 5:9
Psalm 5 belongs to the Psalter, the collection of Hebrew songs and prayers. It is traditionally attributed to David, and its heading addresses it to the choirmaster, which suggests it was meant for use in public worship. The psalm is a morning prayer, as its opening lines ask God to hear David’s words and give attention to his groaning, and it moves from an appeal for help to a confident expression of trust.
The verses surrounding Psalm 5:9 help explain it. In verse 6, David says God will destroy those who speak lies, and in verse 10 he asks God to hold these enemies guilty for their rebellion. Verses 11 and 12 turn to those who take refuge in God, who are called to rejoice because the LORD defends and blesses the righteous. Verse 9 sits between the prayer for justice and the promise of protection, so it reads as an honest description of the danger David faces, not as a statement of personal vengeance.
Key Phrases in Psalm 5:9
Proverbs 26:28
A lying tongue hates those it hurts; and a flattering mouth works ruin.
(WEB)
This proverb pairs closely with Psalm 5:9 by showing how deception harms its victims. It explains that a lying tongue hates those it wounds and that flattery can work ruin, which confirms David’s observation that smooth speech can conceal destructive intent.
Psalm 12:2
Everyone lies to his neighbor. They speak with flattering lips, and with a double heart.
(WEB)
In this psalm, the writer laments that people speak falsely with flattering lips and divided hearts. The language echoes David’s concern in Psalm 5:9 and shows that his complaint about deceitful speech was a recurring theme in Israel’s prayers for help.
A Short Prayer From Psalm 5:9
Lord, you see what people hide behind their words. When I hear praise that feels empty or speech that leaves me uneasy, help me notice the difference between honest encouragement and flattery meant to deceive. Protect me from becoming bitter, and keep my own heart from the kind of ruin that corrupts speech. Give me wisdom to respond with truth and patience, and let me trust you to defend what is right. Amen.
