'Speak the Word' in the Bible

And the centurion responding said, Lord, I am not worthy that thou mayest come in under my roof: but speak the word only, and my servant will be healed.

And in many such parables He continued to speak the word to them, as they were able to hear.

Therefore I did not count myself worthy to come to thee; but speak the word, and my servant shall be healed.

And they praying, the place in which they were assembled was shaken, and they were all filled with the Holy Ghost, and continued to speak the word of God with boldness.

and many of the brethren in the Lord, being confident through my bonds, are bold to speak the word of God more fluently without fear.