2 Timothy 3:16

¹⁴ But as for you, continue in the things you have learned and firmly believed, since you know from whom you have learned them.

¹⁵ 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 instruction, for conviction, for correction, and for training in righteousness,

¹⁷ so that the man of God may be complete, fully equipped for every good work.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB: All Scripture is God-breathed and is useful for instruction, for conviction, for correction, and for training in righteousness,
KJV: All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
WEB: Every Scripture is God-breathed and profitable for teaching, for reproof, for correction, and for instruction in righteousness,
ASV: Every scripture inspired of God [is] also profitable for teaching, for reproof, for correction, for instruction which is in righteousness.
DARBY: Every scripture [is] divinely inspired, and profitable for teaching, for conviction, for correction, for instruction in righteousness;
BLB: Every Scripture [is] God-breathed and profitable for teaching, for conviction, for correction, [and] for training in righteousness,

ÅB: Den hele Skrift er innblest av Gud av Gud og nyttig til lærdom, til overbevisning, til rettledning, til opptuktelse i rettferdighet,
OTB: Hele Skriften er innåndet av Gud og nyttig til undervisning, til overbevisning, til rettledning, til opplæring i rettferdighet;
B1930: Den hele Skrift er innblest av Gud av Gud og nyttig til lærdom, til overbevisning, til rettledning, til optuktelse i rettferdighet,

Romans 15:4
For everything that was written in the past was written for our instruction, so that through endurance and the encouragement of the Scriptures, we might have hope.
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Hebrews 4:12
For the word of God is living and active. Sharper than any double-edged sword, it pierces even to dividing soul and spirit, joints and marrow. It judges the thoughts and intentions of the heart.
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2 Peter 1:19–21
We also have the word of the prophets as confirmed beyond doubt. And you will do well to pay attention to it, as to a lamp shining in a dark place, until the day dawns and the morning star rises in your hearts.
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Mark 12:24
Jesus said to them, “Aren’t you mistaken, because you do not know the Scriptures or the power of God?
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Psalms 19:7–11
The Law of the LORD is perfect, reviving the soul; the testimony of the LORD is trustworthy, making wise the simple.
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Psalms 119:9
How can a young man keep his way pure? By guarding it according to Your word.
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Proverbs 6:23
For this commandment is a lamp, this teaching is a light, and the reproofs of discipline are the way to life,
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2 Timothy 4:2
Preach the word; be prepared in season and out of season; reprove, rebuke, and encourage with every form of patient instruction.
Read in context