And anyone who repents/turns away from their sin, and believes that Jesus is who He says He is, and that He died and was buried, and risen again and now rules the kingdom at the right hand of His Father in heaven, will be justified and will stand before God as though we have never sinned on the day of judgement.

Sorry to just now get back to you on your response. As far as the story of the flood goes, I am convinced that it isn't a myth or some legend. It is in fact an account of historical events, with deep spiritual meaning as well. It further reveals the holiness and righteousness of God. God created the universe, and all it contains, for His glory; with mankind given the most personal attention since we were made in His image. And since we bear His image, and since He is holy, it only stands to reason that He demands holiness from us. But obviously, our sin has caused us to fail, and with God also being just, He cannot allow for our sin to go unpunished.

As sin continued to abound throughout the generations until the days of Noah, and the intentions of every man's hearts were "only evil continually" (Gen. 6:5), it grieved God to His core, and it was time to bring judgment to the whole earth. But since He had made a promise to Adam and Eve in the garden to restore mankind back to Himself through her seed, and since God cannot sin against Himself, He chose Noah and his family, and showed unmerited grace to them through salvation in the ark, to preserve the seed of Eve through the flood.

Even though God destroyed the earth with the flood, He showed mercy by saving the world through the 8 members of Noah's family whose lives were spared. The ark was both literal, and metaphoric. It was used to save the lives of Noah and his family in the first judgment, as well as pointed to the future salvation of the world through Jesus Christ from the last judgement.

Our sins are still very much a severe issue for us today. And God's holy and just view of sin has not changed. He still cannot allow for our sin to go unpunished. Our sins are a federal offense to God, and demands a payment. That's why Roman's 6:23 says "the wages of sin is death." Death and eternal judgment in the lake of fire is the only way that we ourselves can settle that payment for our sin. But God, also being full of grace and mercy, provided a substitute for us by sending His Son, Jesus Christ to the earth, born of a virgin, and living a perfect, sinless life so that He could become the atonement for our sins. He offered Himself to be crucified on the cross, bearing our sins upon Himself, and took the full blunt of God's wrath and judgement, that was intended for us. Because of His sacrifice, our eternal debt to God for our sin has been paid in full.

I'd attest that any action by God is extraordinary, since He, Himself, is extraordinary. That being said, it's only extraordinary to us since we are only mere mortals who cannot fully comprehend things that are of eternal nature. To God, it's just Him doing His will the way that He sees fit.

I agree to an extent that God doesn't have to rely on scripture. Only because all scripture came from Him, and so scripture itself is reliant upon Him. Which is why we can stand firm on what the scripture says. And throughout scripture, there is an overarching pattern that was first introduced in the Garden of Eden, all the way through to the closing benediction of Revelation. And that pattern is that God is redeeming mankind back to Himself.

This was the plan all along. God revealed this plan when He first introduced the gospel to Adam and Eve, after the fall. Instead of executing them on the spot for violating His command, which He would have had every right to do so, He instead revealed His plan of grace and redemption in the promise that "I will put enmity between you and the woman, and between your offspring and her offspring; He shall bruise your head, and you shall bruise His heal." Gen. 3:15.

Since there is, as the KJV puts it in James 1:17, no variation with God, then we can only assume that He meant what He said in Isiah 9:7 in the prophecy of the coming Messiah, Jesus Christ, that "Of the increase of His government and of peace there will be no end, on the throne of David and over His kingdom, to establish it and to uphold it with justice and righteousness from this time forth and forevermore. The zeal of the Lord of hosts will do this."

This kind of dialogue, in Isaiah 9:7, Genesis 3:15, and the references A, B, and C that I mentioned in my question, along with countless other passages of scripture all share a common theme of victory. Which is why I question where the whole ideology of a pre-trib rapture falls in line with the rest of scripture. Especially since the scripture is clear that God's kingdom, which He has appointed Jesus as King over with all authority, is "at hand", here on earth. And it's our calling through the great commission to advance His kingdom in Jesus's authority, not to walk in defeat waiting to be rescued out of here because the oppression is becoming too great.