The Jewish religious leaders closed the ears to the truth that Jesus is the Savior, God Incarnate even though the Scriptures clearly spoke of this. Because they refused to accept that truth, because they refused to come to Jesus and receive that forgiveness of sins, they passed that point of no return and could not be saved! Thus, Jesus condemns these religious leaders and says to them, "Serpents, brood of vipers! How can you escape the condemnation of hell?"
Matthew 23:33. You see, they rejected the only One who could forgive their sins, cleanse them from their sins and thus, they could not escape "the condemnation of hell." And as Jesus finishes this rebuke of these religious leaders He laments over Jerusalem because destruction and judgment was coming was coming upon them, it was less than 40 years away. And in the end, they will not see the Lord, the Jews specifically, until they say, "Blessed is He who comes in the name of the LORD!"
Matthew 23:39. God is not done with Israel and the only way their sin can and will be forgiven is when they come to Jesus and that is true of everyone! May you come to Him and receive Him because apart from Him you can't escape the condemnation of hell!