2 Timothy 3:15-17

... and how from infancy you have known the holy Scriptures, which are able to make you wise for salvation through faith in Christ Jesus. All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness, so that the man of God may be thoroughly equipped for every good work.

and how from infancy you have known the holy Scriptures
John 5:39-40 "You diligently study the Scriptures because you think that by them you possess eternal life. These are the Scriptures that testify about me, yet you refuse to come to me to have life." (Jesus speaking)

which are able to make you wise
Deuteronomy 4:6 Observe them carefully, for this will show your wisdom and understanding to the nations, who will hear about all these decrees and say, "Surely this great nation is a wise and understanding people."
Psalm 119:98-99 Your commands make me wiser than my enemies, for they are ever with me. I have more insight than all my teachers, for I meditate on your statutes.

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. For prophecy never had its origin in the will of man, but men spoke from God as they were carried along by the Holy Spirit.

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 man 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 Timothy 2:21 If a man cleanses himself from the latter, he will be an instrument for noble purposes, made holy, useful to the Master and prepared to do any good work.

NOTES:
1 Timothy 5:18
2 Peter 3:15-16
Read Romans 8

(parentheses are mine)

Scriptures taken from the Holy Bible, New International Version® NIV®, Copyright© 1973, 1978, 1984 by International Bible Society. Used by permission. All rights reserved worldwide.