Verses with the word hoary in the Old Testament (4 verses):

Leviticus 19:32
Thou shalt rise up before the hoary head, and honour the face of the old man, and fear thy God: I am the LORD.

Job 38:29
Out of whose womb came the ice? and the hoary frost of heaven, who hath gendered it?

Job 41:32
He maketh a path to shine after him; one would think the deep to be hoary.

Proverbs 16:31
The hoary head is a crown of glory, if it be found in the way of righteousness.