Ezekiel 12:25

For I the Lord will speak, and whatever Word I speak will be accomplished. It will no longer be delayed for in your days, O rebellious house, I will speak the Word and I will fulfill it,” says the Lord God.

God knows the power of the Word and speaks. When we understand how God operates and the power of that Word, we will have faith and speak the truth. Then, our words will also be fulfilled as we speak. But only when we believe the truth of the Word, exercise our authority, and speak.