I Thessalonians 5:18
In everything give thanks, for this is the will of God in Christ Jesus for you.
Colossians 2:6-7
As ye have therefore received Christ Jesus the Lord, so walk ye in him: Rooted and built up in him, and established in the faith, as ye have been taught, abounding therein with thanksgiving.
Colossians 3:14-15
Above all these things, clothe yourselves with love, which is the uniting bond of maturity, and let the peace of Christ preside in your hearts, unto which you were also called in one body, and be thankful.