Moses
Psalm 5:9BSB·traditional attribution

For not a word they speak can be trusted; destruction lies within them. Their throats are open graves; their tongues practice deceit.

John Calvin Reformed @genevareformer

PSALM 5. David being grievously oppressed by the cruelty of his enemies, and apprehending still more mischief, earnestly beseeches God for help. And the more easily to obtain what he asks, after having, by the earnestness of his prayers, manifested the greatness of his grief, he first brings forward the intolerable malice of his enemies, showing how inconsistent it would be with the character of...

Commenting on Psalm 5:1-12

C.H. Spurgeon Reformed Baptist @princeofpreachers

This description of depraved man has been copied by the Apostle Paul, and, together with some other quotations, he has placed it in the second chapter of Romans, as being an accurate description of the whole human race, not of David's enemies only, but of all men by nature. Note that remarkable figure, "Their throat is an open sepulchre, "a sepulchre full of loathsomeness, of miasma, of pestilence and death.

Matthew Henry Presbyterian @wholebiblehenry

In these verses David gives three characters - of himself, of his enemies, and of all the people of God, and subjoins a prayer to each of them. I. He gives an account of himself and prays for himself, Psa 5:7, Psa 5:8. 1. He is stedfastly resolved to keep closely to God and to his worship.

Commenting on Psalm 5:7-12