'Speak' in the Bible

If, while we are living in darkness, we profess to have fellowship with Him, we speak falsely and are not adhering to the truth.

They are of the world: therefore speak they of the world, and the world heareth them.

If any one may see his brother sinning a sin not unto death, he shall ask, and He shall give to him life to those sinning not unto death; there is sin to death, not concerning it do I speak that he may beseech;