1 Samuel 15:28-29

15:28 Samuel said to him, “The Lord has torn the kingdom of Israel from you this day and has given it to one of your colleagues who is better than you! 15:29 The Preeminent One ¹  of Israel does not go back on his word ²  or change his mind, for he is not a human being who changes his mind.” ³ 

[15:29]  ¹ tn Heb “splendor,” used here by metonymy as a title for the Lord.

[15:29]  ² tn Or perhaps “does not lie.”

[15:29]  ³ sn This observation marks the preceding statement (v. 28) as an unconditional, unalterable decree. When God makes such a decree he will not alter it or change his mind. This does not mean that God never deviates from his stated intentions or changes his mind. On the contrary, several passages describe him as changing his mind. In fact, his willingness to do so is one of his fundamental divine attributes (see Joel 2:13; Jonah 4:2). For a fuller discussion see R. B. Chisholm, Jr., “Does God Change His Mind?” BSac 152 (1995): 387-99.