Colossians 1:9-11, Paul prays for the Christians to be filled with the knowledge of the will of God, to walk worthy of God.
Hebrews 5:1-11, The Superiority of Jesus Christ and His Priesthood, overview
The following Scriptures are used to compare mature/immature believers.
Hebrews 5:11-14
I Corinthians 2:15-3:5
Galatians 6:1
Ephesians 4:13-14, 6:10-17
Philippians 3:3-5, 3:12-13, 4:9
I John 2:14
2 Peter 3:18