Col 3:16. Let the word of Christ dwell in you richly in all wisdom; teaching and admonishing one another in psalms and hymns and spiritual songs, singing with grace in your hearts to the Lord. Eph 5:19. Speaking to yourselves in psalms and hymns and spiritual songs, singing and making melody in your heart to the Lord; Jas 5:13. Is any among you afflicted? let him pray. Is any merry? let him sing psalms. 1 Cor 14:15. What is it then? I will pray with the spirit, and I will pray with the understanding also: I will sing with the spirit, and I will sing with the understanding also.