Matthew 12:34-35

You brood of vipers! how can you, evil as you are, say anything good? For what fills the heart will rise to the lips.

Colossians 3:16

Let the Message of the Christ dwell in your minds in all its wealth, bringing all wisdom with it. Teach and admonish one another with psalms, and hymns, and sacred songs, full of the loving- kindness of God, lifting your hearts in song to him.

Treasury of Scripture Knowledge

Summary

The heart of the wise teacheth his mouth, and addeth learning to his lips.

Bible References

Heart

Matthew 12:34
You brood of vipers! how can you, evil as you are, say anything good? For what fills the heart will rise to the lips.
Colossians 3:16
Let the Message of the Christ dwell in your minds in all its wealth, bringing all wisdom with it. Teach and admonish one another with psalms, and hymns, and sacred songs, full of the loving- kindness of God, lifting your hearts in song to him.