The theme that comes in every chapter of Colossians is thanksgiving.
1:3 We always thank God, the Father of our Lord Jesus Christ, when we pray for you,
1:12 and giving joyful thanks to the Father, who has qualified you to share in the inheritance of his holy people in the kingdom of light.
2:7 ... rooted and built up in him, strengthened in the faith as you were taught, and overflowing with thankfulness.
3:15 -17 Let the peace of Christ rule in your hearts, since as members of one body you were called to peace. And be thankful. Let the message of Christ dwell among you richly as you teach and admonish one another with all wisdom through psalms, hymns, and songs from the Spirit, singing to God with gratitude in your hearts. And whatever you do, whether in word or deed, do it all in the name of the Lord Jesus, giving thanks to God the Father through him.
4:2 Devote yourselves to prayer, being watchful and thankful.