Romans 10:14-15
But how shall they call upon him in whom they have not believed? and how shall they believe on him of whom they have not heard? and how shall they hear without a preacher?
Ephesians 4:29
Let no corrupt word come out of your mouth; but what is good to useful edification, that it may benefit the hearers.
Treasury of Scripture Knowledge
Summary
There is gold, and a multitude of rubies: but the lips of knowledge are a precious jewel.
Bible References
But
Romans 10:14
But how shall they call upon him in whom they have not believed? and how shall they believe on him of whom they have not heard? and how shall they hear without a preacher?
Ephesians 4:29
Let no corrupt word come out of your mouth; but what is good to useful edification, that it may benefit the hearers.