No wonder that you do not understand the Gospel. God does not merely declare, He IS. Foolishness, thy name is Calvin.
HUH?? You seemed to be a bit confused in reading the scriptures
Isa46: 10 Declaring the end from the beginning, and from ancient times the things that are not yet done, saying, My counsel shall stand, and I will do all my pleasure:
You will find the more you read it the easier it is to understand