Charles Ellicott Commentary Psalms 112:5

"Well is it with the man that dealeth graciously and lendeth; He shall maintain his cause in judgment." — Psalms 112:5 (ASV)

A good man. —Rather, happy is the man who gives and lends, good being here not used in a moral sense, but meaning prosperous.

He will guide ... —Rather, he will gain his cause: in (the) judgment.

So, the Septuagint and Vulgate apparently render it this way; others say, “he will sustain his affairs by justice.”

The verb primarily means “to measure,” but in the conjugation used here, it has the sense of “sustains.” (Genesis 47:12; Genesis 1:21, where the Authorised Version has “nourish.”)

This meaning is confirmed by the parallelism of the next verse.