Do not cast me off in the time of old age; forsake me not when my strength is spent.
But I will hope continually and will praise you yet more and more. My mouth will tell of your righteous acts, of your deeds of salvation all the day, for their number is past my knowledge.
O God, from my youth you have taught me, and I still proclaim your wondrous deeds. So even to old age and gray hairs, O God, do not forsake me, until I proclaim your might to another generation, your power to all those to come. (Psalm 71:9, 14-15, 17-18 ESV)
My prayer as I grow older.