Psalm 90

The only psalm credited to Moses. Book Four opens after 89's crisis by going back before David, to God as our dwelling "from everlasting to everlasting." Human life is grass, seventy or eighty years, finished "with a sigh." It doesn't hide from that. It asks for wisdom to count our days, for morning satisfaction in God's love, for gladness to match the years of affliction, and for our ordinary work to last.

"Satisfy us in the morning with Your loving devotion, that we may sing for joy and be glad all our days." (Psalm 90:14)