Romans 10:14-15
But how are they to invoke One in whom they do not believe? And how are they to believe in One of whom they have never heard? And how are they ever to hear, without a preacher?
Ephesians 4:29
Let no bad word pass your lips, but only such speech as is good for edification, as occasion may require, words that are gracious and a means of grace to those who hear them.
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 are they to invoke One in whom they do not believe? And how are they to believe in One of whom they have never heard? And how are they ever to hear, without a preacher?
Ephesians 4:29
Let no bad word pass your lips, but only such speech as is good for edification, as occasion may require, words that are gracious and a means of grace to those who hear them.