2 Timothy 3:16-17

All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness, so that the servant of God may be thoroughly equipped for every good work. 

All Scripture is God-breathed 
2 Peter 1:20-21  Above all, you must understand that no prophecy of Scripture came about by the prophet's own interpretation of things. For prophecy never had its origin in the human will, but prophets, though human, spoke from God as they were carried along by the Holy Spirit.
2 Samuel 23:2  "The Spirit of the LORD spoke through me (David); his word was on my tongue."
Acts 3:17-18  "Now, fellow Israelites, I know that you acted in ignorance, as did your leaders. But this is how God fulfilled what he had foretold through all the prophets, saying that his Messiah would suffer." 
1 Peter 1:10-11  Concerning this salvation, the prophets, who spoke of the grace that was to come to you, searched intently and with the greatest care, trying to find out the time and circumstances to which the Spirit of Christ in them was pointing when he predicted the sufferings of the Messiah and the glories that would follow.

and is useful for teaching 
Romans 4:23-24  The words "it was credited to him" were written not for him alone, but also for us, to whom God will credit righteousness--for us who believe in him who raised Jesus our Lord from the dead.

rebuking, correcting and training in righteousness 
Deuteronomy 29:29  The secret things belong to the LORD our God, but the things revealed belong to us and to our children forever, that we may follow all the words of this law.

so that the servant of God 
1 Timothy 6:11  But you, man of God, flee from all this, and pursue righteousness, godliness, faith, love, endurance and gentleness.

may be thoroughly equipped for every good work 
2 Corinthians 9:8  And God is able to bless you abundantly, so that in all things at all times, having all that you need, you will abound in every good work.
Ephesians 2:10  For we are God's handiwork, created in Christ Jesus to do good works, which God prepared in advance for us to do.

(parentheses are mine)

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