But for the obedience of Jesus Christ on the cross, we would not be saved and redeemed. It is only by Jesus that we can come boldly to the Father. The greatest gift we receive, freely, that is salvation, which comes with a promise of eternal life, a gift worth more than anything on earth could...

The promises of God, His Word, are all yes and amen. When you agree and have faith that it will be done so, it will be done so. Because our God is a God of covenant. He is the other part of the covenant. All you have to do is agree and have faith, and it will be done so. 

With the sacrifice of Jesus Christ on the cross, we have been redeemed. And we are made co-heirs with Jesus. He said, what He did, we can do also. We have been given, too, the power and the authority in Jesus Christ. Don't let the devil tell you so.