Bereans
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Acts 17:11
Now the Bereans were more noble-minded than the Thessalonians, for they received the message with great eagerness and examined the Scriptures every day to see if these teachings were true.
2 Timothy 3:16
All Scripture is God-breathed and is useful for instruction, for conviction, for correction, and for training in righteousness,
2 Timothy 2:15
Make every effort to present yourself approved to God, an unashamed workman who accurately handles the word of truth.