Joh 7:16 Jesus answered them, and said, My doctrine is not mine, but his that sent me.
Joh 7:17 If any man will do his will, he shall know of the doctrine, whether it be of God, or whether I speak of myself.
I will classify this couplet on doctrine under the category of the Mind. We are called to understand all of the Bibles’ teaching which is really, Jesus’, i.e. God’s teaching. For this we need to study and engage the Mind.