As amazing as that may be, it is biblical truth. God is not without emotion. What we do or fail to do affects Him. Our actions either bring Him pleasure or grieve Him deeply. The blessings of Christlike mercy flow not only from the giver to the receiver and back again, but to the very heart of God.
Acts of mercy are acts of praise.
Pray and praise Thee without ceasing, Glory in Thy perfect love. Giving of ourselves to others gives joy to God.