Colossians 3:16-17

Let the christian doctrine be the familiar subject of your entertainment: in all wisdom instructing and exhorting one another, in psalms and hymns and spiritual songs, melodiously tuning your grateful praises to God.

Hebrews 13:15

Let our sacrifice then, which we are to offer to God by Jesus Christ, be that of incessant praises, the offering of our lips, which celebrate his name:

Treasury of Scripture Knowledge

Summary

Enter into his gates with thanksgiving, and into his courts with praise: be thankful unto him, and bless his name.

Bible References

Be thankful

Colossians 3:16
Let the christian doctrine be the familiar subject of your entertainment: in all wisdom instructing and exhorting one another, in psalms and hymns and spiritual songs, melodiously tuning your grateful praises to God.
Hebrews 13:15
Let our sacrifice then, which we are to offer to God by Jesus Christ, be that of incessant praises, the offering of our lips, which celebrate his name: