What does it mean that God's decrees are complete?

The completeness of God's decrees, as seen in Revelation 5, indicates that His plan was established before time began and is infallible. The scroll described by John is fully written within and without, which symbolizes that God’s purposes cannot be altered or added to. There are no unfulfilled aspects of His plan, assuring believers of the certainty of salvation. This completeness offers comfort, as it means all that happens in life, including trials and tribulations, falls within God's divine plan to conform His people to the image of Christ for His glory.