The backslider in heart — i.e., who turns away from God. (Psalms 44:19.)
Shall be filled with his own ways. — (Comp. Proverbs 1:31, and Matthew 6:2, &c: “They have their reward.”) They get to the full what they look for, though it is but swine’s husks, instead of food fit for God’s children.
A good man. — See above on Proverbs 13:22.
Shall be satisfied from himself. — His own work. (Comp. Isaiah 3:10.)