Deuteronomy 32:25 Outside the sword shall bereave, and in the chambers, terror; on both young man and virgin, The suckling with the gray-haired man. (WEB NIV)
Job 15:10 With us are both the gray-headed and the very aged men, much older than thy father. (See NAS RSV NIV)
Job 41:32 He makes a path shine after him. One would think the deep had white hair. (See NAS)
Psalms 71:18 Yes, even when I am old and gray-haired, God, don't forsake me, until I have declared your strength to the next generation, your might to everyone who is to come. (WEB)