Lesson Book of the Universe

The sacrifice required of Abraham was not only for his good nor for the generations to come; it was also for the instruction of the sinless beings of heaven and other worlds. This earth, on which the plan of redemption is carried out, is the lesson book of the universe. Because Abraham had shown a lack of faith, Satan had accused him before angels and God. God desired to prove the loyalty of His servant before all heaven, to demonstrate that nothing less than perfect obedience can be accepted, and to open the plan of salvation more fully before them.BOE 68.2

The test given to Adam in Eden involved no suffering, but the command to Abraham demanded the most agonizing sacrifice. All heaven watched Abraham’s unswerving obedience with wonder and admiration, and all admired his loyalty. Satan’s accusations were shown to be false, and God’s covenant testified that obedience will be rewarded.BOE 68.3

When the command was given to Abraham to offer his son, all heavenly beings watched each step in the fulfillment of this command with intense earnestness. Light was shed on the mystery of redemption, and even the angels understood more clearly the wonderful provision that God had made for our salvation (see 1 Peter 1:12).BOE 68.4