Singing and making melody in your heart— "Your hearts and affections corresponding with what is uttered by your mouths; without which no external melody, be it ever so exact and harmonious, can be pleasing to the Lord."
Related Commentaries of Ephesians 5:19
Ephesians 5:19
19 Speaking to yourselves in psalms and hymns and spiritual songs, singing and making melody in your heart to the Lord;