Adam and Eve and Noah and the Flood are indeed mythical stories.
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Well…actually we might want to consider a few things before we say that:
“Science now corroborates what most great religions have long been preaching: Human beings of all races are … descended from the same first man.”—Heredity in Humans (Philadelphia and New York, 1972), Amram Scheinfeld, p.*238.
“The Bible story of Adam and Eve, father and mother of the whole human race, told centuries ago the same truth that science has shown today: that all the peoples of the earth are a single family and have a common origin.”—The Races of Mankind (New York, 1978), Ruth Benedict and Gene Weltfish, p. 3.
First, Do you believe the Bible is God’s Word otherwise?
Does the Bible present Adam simply as an allegorical character representing all early mankind?
Jude 14: “The seventh one in line from Adam, Enoch, prophesied.” (Enoch was not the seventh in line from all
early mankind.)
Gen. 5:3: “Adam lived on for a hundred and thirty years. Then he became father to a son in his likeness, in his image, and called his name Seth.” (Seth certainly was not fathered by all early men, nor did all early men father sons at 130 years of age.)
Does the statement that a serpent spoke to Eve require that the account be allegorical?
Gen. 3:1-4: “Now the serpent proved to be the most cautious of all the wild beasts of the field that Jehovah God had made. So it began to say to the woman: ‘Is it really so that God said you must not eat from every tree of the garden?’ At this the woman said to the serpent: ‘. God has said, “You must not eat from it, no, you must not touch it that you do not die.”’ At this the serpent said to the woman: ‘You positively will not die.’”
John 8:44: “[Jesus said:]
The Devil . . . is a liar and the father of the lie.” (So the Devil was the source of the first lie, spoken in Eden. He used the serpent as a visible mouthpiece. The Genesis account is not using fictional creatures to teach a lesson. See also Revelation 12:9.)
He employed an animal commonly seen by the human pair—a serpent. Evidently using what we would call ventriloquism, he made it appear that his words proceeded from this creature as his tongue moved regularly… Its naturally cautious manner fitted well with the impression that Satan wanted to make - a wise creature compared to say a monkey!.—Genesis 3:1-5;
Eve allowed herself to be drawn along by selfish desire. She ate what God had forbidden. Afterward, under her urging, her husband Adam also ate. He chose to cast his lot in with her rather than with his Creator. (Genesis 3:6;
1 Timothy 2:14) What was the outcome?
The entire human family was plunged into sin and imperfection. (Rom 5:12) Now Adam and Eve could not pass on to their offspring the perfection that they once had. Just as copies produced from a defective pattern all have the same defect, so all of their offspring were born in sin, with an inherited tendency toward selfishness. (Genesis 8:21)
for more see
forums.catholic-questions.org/showpost.php?p=5602414&postcount=205
After sinner Adam’s expulsion from Eden he lived to see the murder of his own son, banishment of his killer-son, abuse of the marriage arrangement, and profanation of Jehovah’s sacred name. He witnessed the building of a city, the development of musical instruments, and the forging of tools out of iron and copper. He watched and was condemned by the example of Enoch, “the seventh one in line from Adam,” one who “kept walking with the true God.” He even lived to see Noah’s father Lamech of the ninth generation. Finally, after 930 years, most of which was spent in the slow process of dying, Adam returned to the ground from which he was taken, in the year 3096 B.C.E., just as Jehovah had said.—Ge 4:8-26; 5:5-24; Jude 14;
Luke 3:23-38: “Jesus himself, when he commenced his work, was about thirty years old, being the . son of David . son of Abraham … son of Adam.” (David and Abraham are well-known historical persons. So is it not reasonable to conclude that Adam was a real person?)
. “The first man is out of the earth and made of dust.” “The first man Adam became a living soul.” (Ge 2:7; 1Co 15:45, 47) That was in the year 4026 B.C.E. It was likely in the fall of the year, for mankind’s most ancient calendars began counting time in the autumn around October 1, or at the first new moon of the lunar civil year.
(*1 Corinthians 15:22) For just as in Adam all are dying, so also in the Christ all will be made alive.
(1 Corinthians 15:45) It is even so written: “The first man Adam became a living soul.” The last Adam became a life-giving spirit.
(Genesis 1:27) And God proceeded to create the man in his image, in God’s image he created him; male and female he created them.
(Genesis 2:24) That is why a man will leave his father and his mother and he must stick to his wife and they must become one flesh.
(Matthew 19:4-5) In reply he said: “Did YOU not read that he who created them from [the] beginning made them male and female and said, ‘For this reason a man will leave his father and his mother and will stick to his wife, and the two will be one flesh’?
(Romans 5:12-19) … For just as through the disobedience of the one man *many were constituted sinners, likewise also through the obedience of the one [person] many will be constituted righteous.
CHRIST"S PERFECT HUMAN SACRIFICE cannot be explained without beleiving in Adam’s Sin. Thus denial that Adam was a real person who sinned against God implies doubt as to the identity of Jesus Christ. Such denial leads to rejection of the reason it was necessary for Jesus to give his life for mankind. Rejection of that means repudiation of the Christian faith.)
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