1 Corinthians 8:2

8:2 If someone thinks he knows something, he does not yet know to the degree that he needs to know.

1 Corinthians 2:16

2:16 For who has known the mind of the Lord, so as to advise him? ¹  But we have the mind of Christ.

1 Corinthians 1:21

1:21 For since in the wisdom of God the world by its wisdom did not know God, God was pleased to save those who believe by the foolishness of preaching.

[2:16]  ¹ sn A quotation from Isa 40:13.