Albert Barnes Commentary Colossians 2:3

"in whom are all the treasures of wisdom and knowledge hidden." — Colossians 2:3 (ASV)

In whom. Margin, wherein. The more correct translation is, "in whom." The reference is undoubtedly to Christ, as his name is the immediate antecedent, and as what is affirmed here properly pertains to him.

Are hid. Like treasures that are concealed or stored up. It does not mean that none of those "treasures" had been developed; but that, so to speak, Christ, as Mediator, was the great treasure-house where all the wisdom and knowledge necessary for people were to be found.

All the treasures. It is common to compare anything valuable with "treasures" of silver or gold. The idea here is that, in reference to the wisdom and knowledge necessary for us, Christ is what abundant treasures are in reference to the supply of our needs.

Wisdom. The wisdom necessary for our salvation. See Barnes on 1 Corinthians 1:24.

And knowledge. The knowledge which is required to guide us in the way to life. Christ is able to instruct us in all that it is desirable for us to know, so that it is not necessary for us to apply to philosophy, or to human teachings.