Matthew 12:34
How can ye, evil as ye are, speak good things? For out of the abundance of the heart the mouth speaketh.
Matthew 10:27
What I say to you in darkness, speak ye in the light; and what ye hear in the ear, proclaim ye upon the housetops.
Matthew 28:18-20
And Jesus came up and spoke to them, saying, All power was given to me in heaven and on earth.
Mark 16:15
And he said to them, Go ye into all the world, and preach the glad tidings to the whole creation.
Acts 18:9-10
And the Lord said to Paul through a vision in the night, Be not afraid, but speak on, and be not silent;
Romans 10:14-17
How then shall they call on him, in whom they have not believed? and how shall they believe in him, of whom they have not heard? and how shall they hear without a preacher?
Romans 15:18-21
For I will not be bold to say anything hut of what Christ hath actually wrought by me to bring the gentiles to obedience by word and deed,
Ephesians 4:29
Let no foul language proceed out of your mouth, but whatever is good for edification, as the need may be, that it may benefit the hearers;
2 Timothy 2:2
and the things which thou didst hear from me before many witnesses, the same commit thou to faithful men, such as will be able to teach others also.
James 3:6
And the tongue is a fire, a world of iniquity! The tongue among our members is that which defileth the whole body, and setteth on fire the wheel of life, and is itself set on fire by hell.