Psalm 71:18 NKJV
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.
Isaiah 46:4 NKJV
Even to your old age, I am He, And even to gray hairs I will carry you! I have made, and I will bear; Even I will carry, and will deliver you.