2:13 See Zech. 7:9; Matt. 5:7; 18:21–35. Though God is never obligated to show mercy, He freely chooses to do so in abundance. He reserves the divine prerogative to show mercy upon whom He wills (Rom. 9). By His law, however, we are commanded to temper justice with mercy. He warns that if we refuse to show mercy we will not receive mercy from Him.