Philippians 4:6

Be careful for nothing, but in every thing by prayer and supplication with thanksgiving let your requests be made known to God:

1 Thessalonians 5:17-18

Pray without ceasing: In every thing give thanks;

Treasury of Scripture Knowledge

Summary

And Mattaniah the son of Micha, the son of Zabdi, the son of Asaph, was the principal to begin the thanksgiving in prayer: and Bakbukiah the second among his brethren, and Abda the son of Shammua, the son of Galal, the son of Jeduthun.

Bible References

Thanksgiving

Philippians 4:6
Be careful for nothing, but in every thing by prayer and supplication with thanksgiving let your requests be made known to God:
1 Thessalonians 5:17
Pray without ceasing: In every thing give thanks;