This is what verse 18 of chapter 5 of the 1st letter to the Thessalonians says, with the two previous passages also adding simple and valuable advice:
1 Thessalonians 5:16-18
16 Rejoice always,
17 pray continually,
18 give thanks in all circumstances; for this is God’s will for you in Christ Jesus.
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God from us expects to be always happy, to pray at all times, and to give thanks amid any situation
More Bible verses about being thankful, to share on Thanksgiving Day.