Hebrews 5:14
But solid food belongs to full-grown men who on account of constant use have their faculties trained to distinguish good and evil.
1 Corinthians 2:6
Yet, when among mature believers we do set forth a wisdom, but a wisdom that does not belong to this world or to the leaders of this world who are passing away;
Ephesians 4:13
until we all attain to unity in faith and to perfect knowledge of the Son of God, namely, to a mature manhood and to a perfect measure of Christ's moral stature;
Romans 14:1
Make it your practice to receive into full Christian fellowship people who are overscrupulous, but not to criticize their views.
Matthew 5:48
So you, my followers, ought to be perfect, as your heavenly Father is."
Matthew 6:22-23
"The eye is the very lamp of the body. If then your eye is sound, your whole body will be full of light.
1 Corinthians 2:14-15
An unspiritual man does not accept the things that the Spirit of God teaches, for they are nonsense to him; and he cannot understand them, because they are appreciated by spiritual insight.
Ephesians 1:18
by having the eyes of your hearts enlightened, so that you may know what the hope is to which He calls you, how glorious rich God's portion in His people is,
Philippians 1:9-10
And it is my prayer that your love may overflow still more and more, directed by fuller knowledge and keener insight,
Philippians 3:15
So let us all who are mature have this attitude. If you have a different attitude, God will make it clear to you.
1 Thessalonians 5:21
but continue to prove all things until you can approve them, and then hold on to what is good.
James 3:2
For we all make many a slip. If anyone never slips in speech, he is a man of maturity; he can control his whole body too.