Hebrews 5:14

But strong meat belongeth to them of full age, to them who have their senses exercised by habit to discern both good and evil.

1 Corinthians 2:6

Yet we speak wisdom among them that are perfect: but not the wisdom of this world, nor of the rulers of this world, that come to nought: But we speak the hidden wisdom of God in a mystery,

Ephesians 4:13

Till we all come to the unity of the faith and knowledge of the Son of God, to a perfect man, to the measure of the stature of the fulness of Christ:

Romans 14:1

Him that is weak in the faith, receive; but not to doubtful disputations.

Matthew 5:48

Therefore ye shall be perfect, as your Father who is in heaven is perfect.

Matthew 6:22-23

The eye is the light of the body: if therefore thine eye be single, thy whole body shall be full of light.

1 Corinthians 2:14-15

But the natural man receiveth not the things of the Spirit; for they are foolishness to him: neither can he know them, because they are spiritually discerned.

Ephesians 1:18

The eyes of your understanding being inlightened, that ye may know what is the hope of his calling, and what the riches of the glory of his inheritance in the saints,

Philippians 1:9-10

And this I pray, that your love may abound yet more and more, in all knowledge and in all spiritual sense,

Philippians 3:15

Let us therefore, as many as are perfect, be thus minded; and if in any thing ye be otherwise minded, God shall reveal even this unto you.

1 Thessalonians 5:21

Prove all things; hold fast that which is good.

James 3:2

For in many things we offend all. If any one offend not in word, the same is a perfect man, able also to bridle the whole body.

Treasury of Scripture Knowledge

Summary

But strong meat belongeth to them that are of full age, even those who by reason of use have their senses exercised to discern both good and evil.

Bible References

Their

Matthew 6:22
The eye is the light of the body: if therefore thine eye be single, thy whole body shall be full of light.
Ephesians 1:18
The eyes of your understanding being inlightened, that ye may know what is the hope of his calling, and what the riches of the glory of his inheritance in the saints,

To discern

Romans 14:1
Him that is weak in the faith, receive; but not to doubtful disputations.
Philippians 1:9
And this I pray, that your love may abound yet more and more, in all knowledge and in all spiritual sense,