Thy tongue deviseth mischiefs - The word rendered "mischiefs" means

(a) desire, cupidity: Proverbs 10:3; then

(b) fall, ruin, destruction, wickedness: Psalm 5:9; Psalm 38:12.

The meaning here is, that he made use of his tongue to ruin others. Compare Psalm 50:19. The particular thing referred to here is the fact that Doeg sought the ruin of others by giving "information" in regard to them. He "informed" Saul of what Ahimelech had done; he informed him where David had been, thus giving him, also, information in what way he might be found and apprehended. All this was "designed" to bring ruin upon David and his followers. It "actually" brought ruin on Ahimelech and those associated with him, 1 Samuel 22:17-19.

Like a sharp razor - See the notes at Isaiah 7:20. His slanders were like a sharp knife with which one stabs another. So we stay of a slanderer that he "stabs" another in the dark.

Working deceitfully - literally, making deceit. That is, it was by deceit that he accomplished his purpose. There was no open and fair dealing in what he did.

Deviseth mischiefs - Lies and slanders proceeding from the tongue argue the desperate wickedness of the heart.

Like a sharp razor, working deceitfully - Which instead of taking off the beard, cuts and wounds the flesh; or as the operator who, when pretending to trim the beard, cuts the throat.

Thy tongue deviseth mischiefs,.... Abundance of mischiefs, in a variety of ways, against many persons, even all good men. What properly belongs to the heart is here ascribed to the tongue; because, as Aben Ezra observes, it is the interpreter and discoverer of the thoughts of the heart: out of the abundance of that the tongue speaks and declares the mischief it has devised. Doeg intended mischief to David, when he spoke to Saul, 1 Samuel 22:9; so antichrist devises mischiefs against the saints of the most High, to wear them out, and thinks to change times and laws, Daniel 7:25;

like a sharp razor, working deceitfully; that is, his tongue was like a razor; the razor is but a small instrument, and the tongue is but a little member: the razor is a sharp and cutting one, and so is the tongue; and therefore compared to a sharp sword, Psalm 57:4; see Jeremiah 18:18; the razor takes off the beard cleanly and wholly; Doeg's tongue was the cause of the utter ruin of Ahimelech's family and the city of Nob; and as a razor may be said to "work deceitfully", when it turns aside in the hand of him that useth it, and with the hair takes off more than it should, even skin and flesh, or cuts the man's throat; so in a deceitful and insidious manner did Doeg work the destruction of Ahimelech and the priests of the Lord.

Thy tongue deviseth {b} mischiefs; like a sharp razor, working deceitfully.

(b) Your malice moves you by crafty flattery and lies to accuse and destroy the innocents.

52:2 Deviseth - Expresses what thy wicked mind had devised. Deceitfully - Doeg pretended only to vindicate himself from disloyalty, 1Sam 22:8, but he really intended to expose the priests, to the king's fury.

2. tongue-for self.

mischiefs-evil to others (Ps 5:9; 38:12).

working deceitfully-(Ps 10:7), as a keen, smoothly moving razor, cutting quietly, but deeply.

52:1-5 Those that glory in sin, glory in their shame. The patience and forbearance of God are abused by sinners, to the hardening of their hearts in their wicked ways. But the enemies in vain boast in their mischief, while we have God's mercy to trust in. It will not save us from the guilt of lying, to be able to say, there was some truth in what we said, if we make it appear otherwise than it was. The more there is of craft and contrivance in any wickedness, the more there is of Satan in it. When good men die, they are transplanted from the land of the living on earth, to heaven, the garden of the Lord, where they shall take root for ever; but when wicked men die, they are rooted out, to perish for ever. The believer sees that God will destroy those who make not him their strength.