If you make the story of the flood and creation allegoric, what do you do with verses like:
Matthew 24
37 For as were the days of Noah, so will be the coming of the Son of Man. 38 For as in those days before the flood they were eating and drinking, marrying and giving in marriage, until the day when Noah entered the ark, 39and they were unaware until the flood came and swept them all away, so will be the coming of the Son of Man.
Luke 17:26
Just as it was in the days of Noah, so will it be in the days of the Son of Man.
1 Peter 3
18For Christ also suffered once for sins, the righteous for the unrighteous, that he might bring us to God, being put to death in the flesh but made alive in the spirit, 19in which he went and proclaimed to the spirits in prison, 20because they formerly did not obey, when God’s patience waited in the days of Noah, while the ark was being prepared, in which a few, that is, eight persons, were brought safely through water. 21Baptism, which corresponds to this, now saves you, not as a removal of dirt from the body but as an appeal to God for a good conscience, through the resurrection of Jesus Christ, 22who has gone into heaven and is at the right hand of God, with angels, authorities, and powers having been subjected to him.
Luke 3
23Jesus, when he began his ministry, was about thirty years of age, being the son (as was supposed) of Joseph, the son of Heli, 24the son of Matthat, the son of Levi, the son of Melchi, the son of Jannai, the son of Joseph, 25the son of Mattathias, the son of Amos, the son of Nahum, the son of Esli, the son of Naggai, 26the son of Maath, the son of Mattathias, the son of Semein, the son of Josech, the son of Joda, 27the son of Joanan, the son of Rhesa, the son of Zerubbabel, the son of Shealtiel, the son of Neri, 28the son of Melchi, the son of Addi, the son of Cosam, the son of Elmadam, the son of Er, 29the son of Joshua, the son of Eliezer, the son of Jorim, the son of Matthat, the son of Levi, 30the son of Simeon, the son of Judah, the son of Joseph, the son of Jonam, the son of Eliakim, 31the son of Melea, the son of Menna, the son of Mattatha, the son of Nathan, the son of David, 32 the son of Jesse, the son of Obed, the son of Boaz, the son of Sala, the son of Nahshon, 33the son of Amminadab, the son of Admin, the son of Arni, the son of Hezron, the son of Perez, the son of Judah, 34 the son of Jacob, the son of Isaac, the son of Abraham, the son of Terah, the son of Nahor, 35the son of Serug, the son of Reu, the son of Peleg, the son of Eber, the son of Shelah, 36the son of Cainan, the son of Arphaxad, the son of Shem, the son of Noah, the son of Lamech, 37the son of Methuselah, the son of Enoch, the son of Jared, the son of Mahalaleel, the son of Cainan, 38the son of Enos, the son of Seth, the son of Adam, the son of God.
Is then future judgement allegoric? Is Sinful nature we inherit from Adam allegoric? Did death enter the world before Adam? Is not death the penalty of sin?
Allegorical interpretation of these stories has some serious consequence when we look at these topics.