Moses
Psalm 1:5ESV·traditional attribution

Therefore the wicked will not stand in the judgment, nor sinners in the congregation of the righteous;

John Calvin Reformed @genevareformer

Commentary upon the book of Psalms PSALM 1. He who collected the Psalms into one volume, whether Ezra or some other person, appears to have placed this Psalm at the beginning, by way of preface, in which he inculcates upon all the godly the duty of meditating upon the law of God.

Commenting on Psalm 1:1-6

C.H. Spurgeon Reformed Baptist @princeofpreachers

They shall stand there to be judged, but not to be acquitted. Fear shall lay hold upon them there; they shall not stand their ground; they shall flee away; they shall not stand in their own defense; for they shall blush and be covered with eternal contempt.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. The description of the ungodly given, Psa 1:4. 1. In general, they are the reverse of the righteous, both in character and condition: They are not so. The Septuagint emphatically repeats this: Not so the ungodly; they are not so; they are led by the counsel of the wicked, in the way of sinners, to the seat of the scornful; they have...

Commenting on Psalm 1:4-6