In the previous psalm, Heman the Ezrahite poured out his complaint with seemingly no argument at all. In this psalm, another Ezrahite, a man named Ethan, has a strong complaint as well, but he mounts it on top of an unshakeable foundation of covenant promises. He comes before God with expectations and arguments.
“I will sing of the mercies of the Lord for ever: With my mouth will I make known thy faithfulness to all generations. For I have said, Mercy shall be built up for ever: Thy faithfulness shalt thou establish in the very heavens. I have made a covenant with my chosen, I have sworn unto David my servant, Thy seed will I establish for ever, And build up thy throne to all generations. Selah…” (Ps. 89:1–52).
SUMMARY OF THE TEXT:
Foundationally, we know that God will be absolutely faithful to His covenant with the house of David (vv. 1-4). Ethan then expands his vision, and spends some time praising the power, justice, and mercy of God (vv. 5-14). When a people have a God like this, then they are truly blessed (vv. 15-18). Covenants have terms, and Ethan delights to go over those terms in some detail (vv. 19-37). Having laid the groundwork for his petition, he then pours out his desire and petition (vv. 38-51). And with that, the psalm ends on a double amen.