Ethan the Ezrahite wrote, “For I said, ‘Steadfast love will be built up forever; in the heavens you will establish your faithfulness.’ You have said, ‘I have made a covenant with my chosen one; I have sworn to David my servant: I will establish your offspring forever, and build your throne for all generations’” (89:2-4). He remembers the promises God made to David that his descendant would sit on an eternal throne. He knows that God will be faithful to do all that he has promised. So, though struggling with all his troubles and facing enemies on every side, still, he can end his words: “Blessed be the Lord forever!” (89:52)
In the same way, in the psalm of Moses, immediately following, Moses can testify, “Lord, you have been our dwelling place in all generations” (90:1). What wonderful testimonies of God’s faithfulness to his children! May I say, once again, it is the person who spends time in the Word of God reading his promises and seeing the fulfillment of them who, no matter the circumstances, can reflect on the promises, remember that God is faithful, and be comforted.
O God, our help in ages past,
our hope for years to come,
our shelter from the stormy blast,
and our eternal home;
under the shadow of your throne
your saints have dwelt secure.
Sufficient is your arm alone,
and our defense is sure. --Isaac Watts (1719)