Learn the overlooked doctrines that you never read or that never strike your heart and mind and that you church or synagogue does not mention by design (2 Corinthians 11:13-15) but that matter, in order to uncover the truth about the known doctrines.
Wherefore be ye not foolish [dumb, insensitive], but understand [Gr. PUT TOGETHER] what the will of the Lord is. Ephesians 5:17 ASV (Read Isaiah 28:10-13).