.....finished from the foundation of the world

.... the Lamb slain from the foundation of the world....For we which have believed do enter into rest, as he said, As I have sworn in my wrath, if they shall enter into My rest: although the works were finished from the foundation of the world. 

Revelation 13:8/Hebrews 4:3

"Christ was not alone in making His great sacrifice. 

It was the fulfillment of the covenant made between Him and His Father before the foundation of the world was laid. 

With clasped hands they had entered into the solemn pledge that Christ would become the surety for the human race if they were overcome by Satan’s sophistry....The covenant of grace is not a new truth, for it existed in the mind of God from all eternity. This is why it is called the everlasting covenant."

E.G.W.