4 Bible Verses about Discernment, Source Of

Now we have not received the spirit of the world, but the spirit which is from God; that we might know the things that are freely given to us of God. Which things also we speak, not in discourses framed by human wisdom, but taught by the Spirit of God; comparing spiritual things with spiritual. But the natural man receiveth not the things of the Spirit of God: for they are folly to him: and he cannot know them, because they are spiritually discerned.read more.
But the spiritual man discerneth indeed all things, though himself is discernible by no man.

But solid nourishment is proper for grown men, even as many as by habit have their organs of perception exercised for the discernment both of good and evil.

And be not conformed to this world, but be transformed by the renovation of your mind, that you may prove by experience what is the will of God, that is good, acceptable, and perfect.

For who hath known the mind of the Lord? who will instruct him? But we have the mind of Christ.