Verses with the word durable in the Old Testament (2 verses):
Proverbs 8:18
Riches and honour are with me; yea, durable riches and righteousness.
Isaiah 23:18
And her merchandise and her hire shall be holiness to the LORD: it shall not be treasured nor laid up; for her merchandise shall be for them that dwell before the LORD, to eat sufficiently, and for durable clothing.