With hypocritical mockers in {o} feasts, they gnashed upon me with their teeth.

(o) The word signifies cakes: meaning that the proud courtiers at their dainty feasts scoff, rail, and conspire his death.

Wesley's Notes

35:16 Mockers - They made themselves buffoons and jesters, and accustomed themselves to mock and deride David, that thereby they might gain admittance to the tables of great men, which was all they sought for.

Jamieson-Fausset-Brown Bible Commentary

16. mockers-who were hired to make sport at feasts (Pr 28:21).

Matthew Henry's Concise Commentary

35:11-16 Call a man ungrateful, and you can call him no worse: this was the character of David's enemies. Herein he was a type of Christ. David shows how tenderly he had behaved towards them in afflictions. We ought to mourn for the sins of those who do not mourn for themselves. We shall not lose by the good offices we do to any, how ungrateful soever they may be. Let us learn to possess our souls in patience and meekness like David, or rather after Christ's example.