2 and if in a truthful, just and righteous way you swear, 'As surely as the Lord lives,' then the nations will invoke blessings by him and in him they will boast."

Matthew Henry's Commentary on Jeremiah 4:2

Commentary on Jeremiah 4:1-2

(Read Jeremiah 4:1-2)

The first two verses should be read with the last chapter. Sin must be put away out of the heart, else it is not put away out of God's sight, for the heart is open before him.