4. God's gracious reply to their self-condemning prayer.
backsliding—apostasy: not merely occasional backslidings. God can heal the most desperate sinfulness [Calvin].
freely—with a gratuitous, unmerited, and abundant love (Eze 16:60-63). So as to the spiritual Israel (Joh 15:16; Ro 3:24; 5:8; 1Jo 4:10).