IOW, the future is not the same as the past, even for God. They are fundamentally different in nature. What's the difference? The past consists of events which are fixed and unalterable, things which have already happened. The future consists of things yet to happen, which have not happened yet, which are not fixed. These are different for God as well as for us

To Abraham God made a similar promise, the same actually, and swore by Himself that the promise would come true. So yes, Adam could take it as a certainty.

If Christ had failed, the repercussions would have been great indeed.

The holy inhabitants of other worlds were watching with the deepest interest the events taking place on the earth. In the condition of the world that existed before the Flood they saw illustrated the results of the administration which Lucifer had endeavored to establish in heaven, in rejecting the authority of Christ and casting aside the law of God. . . It was an example of the awful depravity resulting from Satan's policy to remove from God's creatures the restraint of His holy law. {PP 78.4}

God carries with Him the sympathy and approval of the whole universe as step by step His great plan advances to its complete fulfillment. He will carry it with Him in the final eradication of rebellion. It will be seen that all who have forsaken the divine precepts have placed themselves on the side of Satan, in warfare against Christ. When the prince of this world shall be judged, and all who have united with him shall share his fate, the whole universe as witnesses to the sentence will declare, "Just and true are Thy ways, Thou King of saints." Revelation 15:3. {PP 79.1}

The whole universe had been witness to the scenes at Sinai. In the working out of the two administrations was seen the contrast between the government of God and that of Satan. Again the sinless inhabitants of other worlds beheld the results of Satan's apostasy, and the kind of government he would have established in heaven had he been permitted to bear sway. {PP 335.3}

This work [the plan of salvation] of Christ was to confirm the beings of other worlds in their innocency and loyalty, as well as to save the lost and perishing of this world. He opened a way for the disobedient to return to their allegiance to God, while by the same act He placed a safeguard around those who were already pure, that they might not become polluted. {MYP 253.3}

While we rejoice that there are worlds which have never fallen, these worlds render praise and honor and glory to Jesus Christ for the plan of redemption to save the fallen sons of Adam, as well as to confirm themselves in their position and character of purity. . . Christ is mediating in behalf of man, and the order of unseen worlds also is preserved by His mediatorial work. {MYP 254.1}

To the very close of the controversy in heaven the great usurper continued to justify himself. When it was announced that with all his sympathizers he must be expelled from the abodes of bliss, then the rebel leader boldly avowed his contempt for the Creator's law. He reiterated his claim that angels needed no control, but should be left to follow their own will, which would ever guide them right. He denounced the divine statutes as a restriction of their liberty and declared that it was his purpose to secure the abolition of law; that, freed from this restraint, the hosts of heaven might enter upon a more exalted, more glorious state of existence. {GC 499.2}

MM: Also, did the holy angels learn anything about God they didn't know before they choose to side with God when the other angels rebelled?

TE: Yes. The chapter "It Is Finished" discusses this, to name one spot.

MM: What in particular do you have in mind?

TE: Much of the chapter deals with what the angels learned. Over half of it.

MM: You seem to think God cannot know the future with certainty.

TE: I disagree with this statement. At least, it's not accurate, in terms of what I believe. Here's what I believe.

1.The future is not fixed but open.
2.God knows and perceived the future as not fixed by open.

IOW, the future is not the same as the past, even for God. They are fundamentally different in nature. What's the difference? The past consists of events which are fixed and unalterable, things which have already happened. The future consists of things yet to happen, which have not happened yet, which are not fixed. These are different for God as well as for us.

What's the difference between God and us regarding the future? The difference is that God sees the future perfectly, including all of it's possibilities. Everything that can happen God sees.

That God is not limited by time must be true since God created it. However, that does not imply that God does not experience time, or that God does not exist in time. All of Scripture denies the idea you are expressing. There are thousands upon thousands of expressions where God communicates to us as a Being who experiences things in time, as we do.

Tom, if A&E had successfully withstood Satan’s assault, Jesus would not have needed to die to redeem us. Without the death of Jesus, upon what grounds would God have destroyed the evil angels?

And, what about the unfallen beings? What would have made them more secure against evil than they were before Lucifer rebelled?