“Not that we are sufficient of ourselves to think any thing as of ourselves; but our sufficiency is of God; 

Who also hath made us able ministers of the new testament; not of the letter, but of the spirit: for the letter killeth, but the spirit giveth life.”

(2 Corinthians 3:5–6 KJV)

“Study to shew thyself approved unto God, a workman that needeth not to be ashamed, rightly dividing the word of truth.”

(2 Timothy 2:15 KJV)