'Speak the Word' in the Bible

But the angel of the Lord said to Balaam, "Go with the men, but you may only speak the word that I will speak to you." So Balaam went with the princes of Balak.

For I, the Lord, will speak. Whatever word I speak will be accomplished. It will not be delayed any longer. Indeed in your days, O rebellious house, I will speak the word and accomplish it, declares the sovereign Lord.'"