Charles Ellicott Commentary Psalms 75:2

"When I shall find the set time, I will judge uprightly." — Psalms 75:2 (ASV)

When I. —Rather, When I have chosen my time, I will judge uprightly. This sense: “my time” being shown by the emphatic “I” of the Hebrew. (Compare to Acts 17:31.) The word rendered in the Authorised Version “congregation” (moed), has plainly here its first derivative sense of a set time, or “occasion.” (Habakkuk 2:3.) So Septuagint and Vulgate here; but Symmachus gives “synagogue.”

It is quite clear that the speaker of these words is God Himself, who suddenly, as in Psalm 46:10, breaks in with the announcement of judgment. But how far the Divine utterance extends in the psalm is not quite clear. Some end it with Psalm 75:3; others with Psalm 75:5.