Now also when I am old and grayheaded, O God, do not forsake me, until I declare Your strength to this generation, Your power to everyone who is to come. Also Your righteousness, O God, is very high, You who have done great things; O God, who is like You?  You, who have shown me great and severe troubles, shall revive me again, and bring me up again from the depths of the earth. You shall increase my greatness, and comfort me on every side.  Also with the lute I will praise you - and Your faithfulness, O my God! To You I will sing with the harp, O Holy One of Israel. My lips shall greatly rejoice when I sing to You, and my soul, which You have redeemed.

Ps 71:18-23   (NKJV)