What is Good and What is Evil?

There really is evil.

Don't be evil. https://en.wikipedia.org/wiki/Don%27t_be_evil

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2 Thessalonians 3:3

[3] But the Lord is faithful, and he will strengthen you and protect you from the evil one.

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1 Timothy 1:19-20

(19) Holding faith, and a good conscience; which some having put away concerning faith have made shipwreck:
(20) Of whom is Hymenaeus and Alexander; whom I have delivered unto Satan, that they may learn not to blaspheme.

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Keep the Faith.

- Rontabs