Albert Barnes Commentary Psalms 89:38

"But thou hast cast off and rejected, Thou hast been wroth with thine anointed." — Psalms 89:38 (ASV)

But you have cast off - literally, You have treated as a foul, offensive thing; you have treated him to whom these promises were made, as if he were a vile and detestable object - as that which one throws away because it is worthless or offensive.

And abhorred - You have despised; that is, as if it were an object of aversion or contempt. Compare Psalm 60:1, Psalms 60:10.

You have been wroth - literally, “You have suffered (your anger) to overflow,” or to pour itself forth. See Psalm 78:21, Psalms 78:59.

With your anointed - With him who had been anointed as king - anointed as your own - to administer justice, and to rule for you (1 Samuel 16:1, 1 Samuel 16:13). This might seem to refer to the time of Absalom, when David was driven from his throne and his kingdom; see, however, the Introduction to the Psalm.