The Lord Jesus won the victory over the devil for us. He fulfilled every requirement of the Law for us. Every curse of the law was also broken, and the love of God was made perfect for all humanity. Everything Jesus died for, including power and authority over the devil and his demons, is ready and available to every believer. The redemption work is finished, but we need to learn to use the authority that we already have in Christ. And we can surely achieve this when we yield completely to the Holy Spirit, learn to walk by faith and not by sight, and live by the Word of God.
A new and everlasting covenant was made and sealed by the precious blood of Christ. The Word of God is now the eternal assurance for the believer because the Lord will never violate His word. This truth makes the Christian life very simple, fun, and predictable because we know what exactly God will do when we keep His Word. The believer now has limitless possibilities in the spiritual realm. Why? Because the Christian lives and operates from the highest level possible, which is in Christ Jesus, the King of kings and the Lord of lords.