What does Colossians 2:3 mean?

After mentioning mystery in the previous verse, Paul notes that Christ is the one "in whom are hidden all the treasures of wisdom and knowledge." Treasures are often hidden for the sake of keeping them safe. In this case, the knowledge and wisdom are kept in Christ, but made available to those who believe in Him. Paul sometimes spoke of the "hidden wisdom of God" (1 Corinthians 2:7; see also Colossians 1:26; 3:3). "All" the treasures of wisdom and knowledge are found in Jesus. Paul expressed similar words in Romans 11:33: "Oh, the depth of the riches and wisdom and knowledge of God!"

The Bible says that Solomon was the wisest man, other than Jesus, who ever lived (1 Kings 3:12). Solomon often spoke of the association of wisdom and knowledge (2 Chronicles 1:10– 12; Ecclesiastes 1:16; 2:21, 26). Paul's reference may also allude to Isaiah 33:6: "he will be the stability of your times, abundance of salvation, wisdom, and knowledge; the fear of the LORD is Zion's treasure."