Ephesians 5:19

but drink deeply of God's Spirit. Speak to one another with psalms and hymns and spiritual songs. Sing and offer praise in your hearts to the Lord.

Colossians 3:16

Let the teaching concerning Christ remain as a rich treasure in your hearts. In all wisdom teach and admonish one another with psalms, hymns, and spiritual songs, and sing with grace in your hearts to God.

Acts 16:25

About midnight Paul and Silas were praying and singing hymns to God, and the prisoners were listening to them,

1 Corinthians 14:26

What then, brethren? Whenever you assemble, there is not one of you who is not ready either with a song of praise, a sermon, a revelation, a 'tongue,' or an interpretation. Let everything be done with a view to the building up of faith and character.

James 5:13

Is one of you suffering? Let him pray. Is any one in good spirits? Let him sing a psalm.

Matthew 15:8

"'This is a People who honour Me with their lips, while their heart is far away from Me;

Matthew 26:30

So they sang the hymn and went out to the Mount of Olives.

John 4:23-24

But a time is coming--nay, has already come--when the true worshippers will worship the Father with true spiritual worship; for indeed the Father desires such worshippers.

Treasury of Scripture Knowledge

Summary

Speaking to yourselves in psalms and hymns and spiritual songs, singing and making melody in your heart to the Lord;

Bible References

To yourselves

Acts 16:25
About midnight Paul and Silas were praying and singing hymns to God, and the prisoners were listening to them,
1 Corinthians 14:26
What then, brethren? Whenever you assemble, there is not one of you who is not ready either with a song of praise, a sermon, a revelation, a 'tongue,' or an interpretation. Let everything be done with a view to the building up of faith and character.
Colossians 3:16
Let the teaching concerning Christ remain as a rich treasure in your hearts. In all wisdom teach and admonish one another with psalms, hymns, and spiritual songs, and sing with grace in your hearts to God.
James 5:13
Is one of you suffering? Let him pray. Is any one in good spirits? Let him sing a psalm.

Making

Matthew 15:8
"'This is a People who honour Me with their lips, while their heart is far away from Me;
John 4:23
But a time is coming--nay, has already come--when the true worshippers will worship the Father with true spiritual worship; for indeed the Father desires such worshippers.