Moses
Psalm 143:2ESV·traditional attribution

Enter not into judgment with your servant, for no one living is righteous before you.

John Calvin Reformed @genevareformer

PSALM 143 Although the enemies with whom David had to contend were wicked, and their persecution as unjust as it was cruel, David recognized the just judgment of God in it all, and seeks to conciliate his favor by humbly supplicating pardon.

Commenting on Psalm 143:1-12

C.H. Spurgeon Reformed Baptist @princeofpreachers

And enter not into judgment with thy servant. He had entreated for audience at the mercy seat, but he has no wish to appear before the judgment seat. Though clear before men, he could not claim innocence before God. Even though he knew himself to be the Lord's servant, yet he did not claim perfection, or plead merit; for even as a servant he was unprofitable.

Matthew Henry Presbyterian @wholebiblehenry

Here, I. David humbly begs to be heard (Psa 143:1), not as if he questioned it, but he earnestly desired it, and was in care about it, for, having desired it, and was in care about it, for having directed his prayer, he looked up to see how it sped, Hab 2:1.

Commenting on Psalm 143:1-6