2 Timothy 2:15-15
u Be diligent to present yourself approved to God, a worker who does not need to be ashamed, rightly dividing the word of truth.
New King James Version (NKJV) Copyright © 1982 by Thomas Nelson, Inc.
1 Timothy 4:13
Till I come, give attention to reading, to exhortation, to doctrine.
2 Peter 1:10
Therefore, brethren, be even more diligent to make your call and election sure, for if you do these things you will never stumble.