1 Cor 2:10-12
10 But God has revealed them to us through His Spirit.
For the Spirit searches all things, yes, the deep things of God.
11 For what man knows the things of a man except the spirit of the man which is in him?
Even so, no one knows the things of God except the Spirit of God.
12 Now we have received, not the spirit of the world,
but the Spirit who is from God, that we might know
the things that have been freely given
to us by God.