The four gospels have very little to say about this topic. Almost nobody talks about “going to heaven.” When Jesus talks about the “kingdom of heaven,” he doesn’t mean a place called “heaven,” but the rule of “heaven,” that is, God’s reign, coming to birth on earth. Almost nobody in the gospels warns about “going to hell.” The dire warnings in the four gospels are mostly directed toward an imminent this-worldly disaster, namely, the fall of Jerusalem and other events connected with that.