1st Corinthians 2:13

10 but to us did God reveal [them] through His Spirit, for the Spirit all things doth search, even the depths of God,

11 for who of men hath known the things of the man, except the spirit of the man that [is] in him? so also the things of God no one hath known, except the Spirit of God.

12 And we the spirit of the world did not receive, but the Spirit that [is] of God, that we may know the things conferred by God on us,

13 which things also we speak, not in words taught by human wisdom, but in those taught by the Holy Spirit, with spiritual things spiritual things comparing,

14 and the natural man doth not receive the things of the Spirit of God, for to him they are foolishness, and he is not able to know [them], because spiritually they are discerned;

15 and he who is spiritual, doth discern indeed all things, and he himself is by no one discerned;

16 for who did know the mind of the Lord that he shall instruct Him? and we -- we have the mind of Christ.