The first verse of Isaiah 27 mentions Leviathan the fleeing serpent:
“In that day the LORD with His severe sword, great and strong, Will punish Leviathan the fleeing serpent, Leviathan that twisted serpent; And He will slay the reptile that is in the sea.”
This is a prophecy of how Satan was defeated when Jesus rose from the dead on the third day after His crucifixion. When we die in our sins without having been saved, Satan wins. But when Christ rose from the dead, Satan lost. In the cross was God’s greatest triumph. Jesus’s resurrection (in addition to the miracles and prophecies come true) proves His divinity and allows us to live as redeemed children of God.
“My little children, these things I write to you, so that you may not sin. And if anyone sins, we have an Advocate with the Father, Jesus Christ the righteous.” I John 2:1
Before Christ, this was not the case. Satan, or in these verses, Leviathan, had claim on men and women who died in their sins. But now, through Christ and God’s new covenant, we can be saved.
Verses 2-13 are a description of the high place that Israel holds with God as His chosen people. But there are also warnings of suffering and punishment that come into play as well.
As we read these verses we get the understanding that God loves and cares for the nation of Israel very much, but also that it is a disappointment to Him because of their disobedience and idol worship. However, Israel will ultimately return to God after He has removed that sinful and woeful element.
Indeed, “Israel” is perfected in all Christians today that hear, believe and obey Jesus. God has perfected redemption through Jesus, and this prophecy is told so many years before; irrefutable proof of the omniscience of God!