Adam was a mythical figure who never really lived…
Adam is a key figure in Scripture. He is described as the "first Adam," the one who brought sin into the world. He made it necessary for Jesus, the "last Adam," to atone for all humans, and then rise from the grave with the promise of complete redemption for fallen man and fallen creation. If Adam was just a myth, we would not be able to fully understand the work of Jesus. If Adam and Eve were not real, then we ought to doubt whether their children were real too, and their children...and then we ought to doubt the first 11 chapters of Genesis, and so on. All the genealogies accept Adam as being a literal person, so their children Cain and Abel (Genesis 4:9,10; Luke 11:50,51) must be real too. Jesus was descended from Adam, and it is [b]impossible to be descended from a myth[/b].
Christians can’t use ‘circular reasoning’ by trying to prove the Bible by quoting from the Bible!
The "circular reasoning" argument is absurd. That’s like saying you can’t prove that the President lives in the White House by looking into the White House. It is looking into the White House that will provide the necessary proof. The fulfilled prophecies, the amazing consistency, and the many scientific statements of the Bible prove it to be the Word of God. They provide evidence that it is supernatural in origin. See also Psalm 119:105 footnote.
So Mary Poppins also exists?
Scientific statements like we are decendants of mud and a rib?
Mathematical statements like PI=3?
If the Genesis account is to be believed, we’re all (the first) Adam’s (and also Noah’s) descendants, not just Jesus. Another question concerns the figure of Eve and how she is misogyny personified in that she was the ostensible temptress of the otherwise innocent Adam. It has always been a mark of patriarchal superstition and insecurity that women should get bad press. This too is impossibly descended from a myth, I suppose. But never mind that. If Adam was tainted by sin and every one of his descendants is equally tainted and he is a (distant) ancestor of Jesus, how could Jesus be pure?
Actually, π = 3 is implied in the bible, rather than directly stated, but you should see what biblical literalists make of “god sitting on the circle of the earth.” A circle immediately becomes an oblate spheroid in their minds, and never mind projective geometry. Curiously, it took about fifteen centuries for this message to become plain – coincidentally, around the same time that geometers, astronomers and navigators (modern term = “surveyors”) started arguing convincingly for a spherical Earth.