Psalm 90 is both good and bad news. The good news is that God is in this human redemption business for the long haul. All of human existence is but a moment to him. Like Martin Luther King, God knows where the arc of moral history is going. It is not a long arc to him. God knows that it bends toward justice. But it will take forever in human terms. And yes, the bad news is that God knows that your life, and mine, on this planet will be over in a blink. We won't live to see what we hope for become a reality.