1 Thessalonians 5:21

21 prove all things; hold fast that which is good;

1 Thessalonians 5:21 In-Context

19 Quench not the Spirit;
20 despise not prophesyings;
21 prove all things; hold fast that which is good;
22 abstain from every form of evil.
23 And the God of peace himself sanctify you wholly; and may your spirit and soul and body be preserved entire, without blame at the coming of our Lord Jesus Christ.
The American Standard Version is in the public domain.