Ayub 28:12-19 And wisdom – where is it found? And where is the place of understanding? (13) Man does not know its value, and it is not found in the land of the living. (14) The deep has said, ‘It is not in me,’ and the sea has said, ‘It is not with me.’ (15) Gold is not given for it, nor is silver weighed out as its price. (16) It is not valued in the gold of Auphir, in precious shoham or sapphire. (17) Gold or crystal are not to be compared with it, nor is it exchanged for a vessel of fine gold. (18) No mention is made of coral or crystal, for the price of wisdom is above rubies. (19) The topaz of Kush is not to be compared with it, nor is it valued in clean gold.
Proverbs 3:13-18 Assured is the man who has found wisdom, and the man who gets understanding; (14) For the gain from it is better than gain from silver, and its increase than fine gold. (15) She is more precious than rubies, and all your delights are not comparable to her. (16) Length of days is in her right hand, riches and esteem in her left hand. (17) Her ways are pleasant ways, and all her paths are peace. (18) She is a tree of life to those taking hold of her, and assured are all who retain her.
Proverbs 8:1-11 Does not wisdom call, and understanding lift up her voice? (2) On the top of the heights along the way, between the paths she has taken her stand. (3) Beside the gates, leading to the city, at the entrances, she shouts: (4) “O men, I call, to you, and my voice is to the sons of men. (5) “You simple ones, understand insight, and you fools, be of an understanding heart. (6) “Listen, for I speak noble words, and the opening of my lips is about straightness; (7) “For my mouth speaks truth; And wrongness is an abomination to my lips. (8) “All the words of my mouth are in righteousness, none of them twisted or crooked, (9) “All of them plain to him who understands, and straight to those who find knowledge. (10) “Accept my discipline, and not silver, and knowledge rather than choice gold; (11) “For wisdom is better than rubies, and all delights are not comparable to her.”
Proverbs 20:15 There is gold and a multitude of rubies, but the lips of knowledge are a precious vessel.
Proverbs 31:10-12 Who does find a capable wife? For she is worth far more than rubies. (11) The heart of her husband shall trust her, and he has no lack of gain. (12) She shall do him good, and not evil, all the days of her life.