Sirach 6:14LXX

12If he humble himself before thee, and hide himself from thy face, thou shalt have unanimous friendship for good.

13Separate thyself from thy enemies, and take heed of thy friends.

14A faithful friend is a strong defence: and he that hath found him, hath found a treasure.

15Nothing can be compared to a faithful friend, and no weight of gold and silver is able to countervail the goodness of his fidelity.

16A faithful friend is the medicine of life and immortality: and they that fear the Lord, shall find him.