Seems appropriate:
"Separate thyself from thy enemies, and take heed of thy friends. A faithful friend is a strong defense: and he that hath found him, hath found a treasure. Nothing can be compared to a faithful friend, and no weight of gold and silver is able to countervail the goodness of his fidelity. A faithful friend is the medicine of life and immortality: and they that fear the Lord, shall find him". - Ecclesiasticus 6:13-16