Hebrews 5:14
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.
1 Corinthians 2:6
But we speak wisdom among the perfect: yet not the wisdom of this world, nor of the rulers of this world, who are destroying themselves:
Ephesians 4:13
until we all attain in the unity of the faith, and the knowledge of the Son of God, unto a state of complete manhood, unto the measure of the stature of the fulness of Christ:
Romans 14:1
HIM that is weak in faith take by the hand, and enter not into niceties of disputes.
Matthew 5:48
Be ye therefore perfect, as your Father who is in heaven is perfect.
Matthew 6:22-23
The lamp of the body is the eye: if therefore thine eye be transparent, thy whole body shall be enlightened.
1 Corinthians 2:14-15
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.
Ephesians 1:18
the eyes of your understanding being enlightened, that you may know what is the hope to which he hath called you, and what the riches of the glory of his inheritance for the saints,
Philippians 1:9-10
And this I pray, that your love may abound yet more and more in knowledge and all understanding;
Philippians 3:15
Let as many of us therefore as are perfect, be thus minded: and if ye entertain any other sentiment, God also will unveil this unto you.
1 Thessalonians 5:21
Prove all things; hold fast that which is good.
James 3:2
For in many things we all offend. If any man offend not in word, he is a perfect man, and capable of reining in the whole body.