Malachi 2:6

The law of truth — i.e., right instruction in the Law, and judgment in accordance with the Law, the reverse of which is “iniquity,” or rather, perversion.

Walked with me — i.e., had their conversation in heaven. (Philippians 3:20; comp. Zechariah 3:7; and Genesis 5:24, of Enoch.)

In peace. — See on the preceding verse.

Equity — i.e., integrity of life.

And did turn.... iniquity. — Of this, says Pusey, “What a history of zeal for the glory of God and of the conversion of sinners in those of whom the world knows nothing, of whose working, but for the three words in the closing book of the Old Testament, we should have known nothing.”