'Instruct' in the Bible

"For who has known the mind of the Lord, that he should instruct him?" But we have Christ's mind.

However in the assembly I would rather speak five words with my understanding, that I might instruct others also, than ten thousand words in another language.

If you instruct the brothers of these things, you will be a good servant of Christ Jesus, nourished in the words of the faith, and of the good doctrine which you have followed.