Saul said, They have brought them from the Amalekites: for the people spared the best of the sheep and of the oxen, to sacrifice to Yahweh your God; and the rest we have utterly destroyed.
"When God issues a decree that is plainly intended as irrevocable, as in the rejection of Saul, then, says our text, there is no possibility of that decree being rescinded (cf. Numbers 23:19)." [Note: Gordon, p. 146.] 