Mâ'as (מָאַס, Strong's #3988), “to reject, refuse, despise.” This verb is common in both biblical and modern Hebrew. It occurs about 75 times in the Hebrew Old Testament and is found for the first time in Lev. 26:15: “… If ye shall despise [RSV, “spurn”] my statutes.…”
God will not force man to do His will, so He sometimes must “reject” him: “Because thou hast rejected knowledge, I will also reject thee, that thou shalt be no priest to me …” (Hos. 4:6). Although God had chosen Saul to be king, Saul’s response caused a change in God’s attitude: “Because thou hast rejected the word of the Lord, he hath also rejected thee from being king” (1 Sam. 15:23). As a creature of free choice, man may “reject” God: “… Ye have despised the Lord which is among you” (Num. 11:20). At the same time, man may “reject” evil (Isa. 7:15- 16)When the things that God requires are done with the wrong motives or attitudes, God “de-spised his actions: “I hate, I despise your feast days …” (Amos 5:21). Purity of heart and attitude are more important to God than perfection and beauty of ritual.