" Scripture describes God’s character as unchanging (Mal. 3:6), but it never teaches that God is unable to change in any respect (e.g., his intentions, experiences). It teaches that the future is settled to the extent God wills it, but it never teaches that the future is exhaustively settled. And it teaches that God sometimes chooses not to change his mind (Num. 23:19; 1 Sam. 15:29; Ezek. 24:14; Zech. 8:14) but never that he cannot change his mind. Indeed, passages that reveal God choosing not to change his mind only make sense if God can change his mind when he chooses. Further, "

― Gregory A. Boyd , Across the Spectrum: Understanding Issues in Evangelical Theology