And they rose early in the morning, and went forth into the wilderness of Tekoa: and as they went forth, Jehoshaphat stood and said, Hear me, O Judah, and ye inhabitants of Jerusalem; Believe in the Lord your God, so shall ye be established; believe his prophets, so shall ye prosper. – 2 Chronicles 20:20

When the Lord has already told you the outcome, believe what He has said.
What has the Lord already promised to you in your own life? If you believed it then, why wouldn’t you believe it now? Declare that it is so.
There have been many times where I heard from the Lord about a situation or received prophetic words from another that completely countered my current situation. Yet, the prophetic declares things to come which then requires one to stand firm in their faith to see it manifest. We please God when we stand firm in our faith.
Declaration
Lord, you make a way when there is now way! When you have spoken, we believe what you have said. Even though it seems that all is lost, we believe that your word never returns void. We will not back down in our faith. We will not give into fear and partner with the enemy of your agenda. We declare that you alone are victorious! We declare that your love and mercy chase us all the days of our lives. We declare and acknowledge that you God are a good, just and all powerful!
(FYI…Not referring to so called prophetic words delivered by lying prophets who are under the spirit of witchcraft.)