Hebrews 5:14

but solid food belongs to those who are of full age, who by use have their senses exercised to discern both good and evil.

1 Corinthians 2:6

But we do speak wisdom among the perfect; not, however, the wisdom of this world, nor of the rulers of this world, who are coming to nought;

Ephesians 4:13

till we all attain to the unity of the faith and of the knowledge of the Son of God, to a fullgrown man, to the measure of the stature of the fullness of Christ;

Romans 14:1

Him that is weak in his faith receive with kindness, and not to pass judgment on his thoughts.

Matthew 5:48

Be ye therefore perfect, as your heavenly Father is perfect.

Matthew 6:22-23

The eye is the lamp of the body. If thine eye he clear, thy whole body will be in light;

1 Corinthians 2:14-15

But the unspiritual man receiveth not the things of the Spirit of God; for they are foolishness to him, and he cannot know them; because they are spiritually discerned.

Ephesians 1:18

the eyes of your mind being enlightened, that ye may know what is the hope belonging to his call of you, and what the riches of the glory of the inheritance which he hath given among the saints,

Philippians 1:9-10

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

Philippians 3:15

Let us, therefore, as many as are perfect, be of this mind; and if ye have a different mind in anything, even this will God reveal to you.

1 Thessalonians 5:21

but prove all things; hold fast that which is good;

James 3:2

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

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 lamp of the body. If thine eye he clear, thy whole body will be in light;
Ephesians 1:18
the eyes of your mind being enlightened, that ye may know what is the hope belonging to his call of you, and what the riches of the glory of the inheritance which he hath given among the saints,

To discern

Romans 14:1
Him that is weak in his faith receive with kindness, and not to pass judgment on his thoughts.
Philippians 1:9
And this I pray, that your love may abound yet more and more in knowledge and in all discernment;