David
Psalm 14:3ESV·traditional attribution

They have all turned aside; together they have become corrupt; there is none who does good, not even one.

John Calvin Reformed @genevareformer

PSALM 14. In the beginning the Psalmist describes the wicked contempt of God into which almost the whole people had broken forth. To give the greater weight to his complaint, he represents God himself as uttering it. Afterwards he comforts himself and others with the hope of a remedy, which he assures himself God will very soon provide, although, in the meantime, he groans and...

Commenting on Psalm 14:1-7

C.H. Spurgeon Reformed Baptist @princeofpreachers

"They are all gone aside." Without exception, all men have apostatized from the Lord their Maker, from his laws, and from all the eternal principles of right. Like stubborn heifers they have sturdily refused to receive the yoke, like errant sheep they have found a gap and left the right field.

Matthew Henry Presbyterian @wholebiblehenry

If we apply our hearts as Solomon did (Ecc 7:25) to search out the wickedness of folly, even of foolishness and madness, these verses will assist us in the search and will show us that sin is exceedingly sinful. Sin is the disease of mankind, and it appears here to be malignant and epidemic. 1.

Commenting on Psalm 14:1-3