'Speak the Word' in the Bible

But the centurion answering said, Lord, I am not worthy that Thou shouldst come under my roof, but speak the word, and my servant will be healed:

neither did I think myself worthy to come unto thee. But speak the word, and my servant will be recovered.

But he replied, I am not mad, most noble Festus; but I speak the words of truth and of a sound mind.