Mal 1:14

1:14 Cursed be the cheat. Laws regulating voluntary offerings required the giving of a perfect offering. This text implies an attempt to deceive the Lord (cf. Ps. 76:11).

I am a great King. God is not only their Father (1:6; Ex. 4:22) and their Master, but also their King. The idea of God as King arose early in Old Testament religion (Num. 23:21; 24:7; Deut. 33:5). See Ps. 93–100.