To Err Is...
By San Antonio Rose

We believe in bodily miracles, but not in mental impossibilities. -- G. K. Chesterton, Orthodoxy

"He said what?" Castiel frowned, sitting up on the bed as surprise temporarily overcame his weakened state.

"It's in the bloodline," Dean repeated.

"No, the second part."

"Comes from Cain and Abel?"

"Yes." Castiel leaned forward. "It can't have come from them."

Dean blinked. "What do you mean?"

"Abel left no children. All of Cain's descendants died in the Flood. All humans now living are descendants of Seth, the third son of Adam, through the line of Enoch and Noah."

Sam and Dean shared a puzzled frown. "But I thought it made sense," Sam replied. "The good older brother, the bad younger brother...."

"No!" Castiel interrupted, looking even more perturbed. "Cain was the eldest! Here, look." He found the Gideon Bible in the nightstand and opened it to Genesis 4, then handed it to Dean.

Dean's frown deepened as he read aloud:

And Adam knew Eve his wife; and she conceived, and bare Cain, and said, I have gotten a man from the LORD. And she again bare his brother Abel. And Abel was a keeper of sheep, but Cain was a tiller of the ground. And in process of time it came to pass, that Cain brought of the fruit of the ground an offering unto the LORD. And Abel, he also brought of the firstlings of his flock and of the fat thereof. And the LORD had respect unto Abel and to his offering: But unto Cain and to his offering he had not respect....

"Because Cain brought only a sampling, and that grudgingly, but Abel brought his first and best and gave cheerfully," Castiel noted as Dean trailed off. "Cain was jealous because he thought himself the better because he was the elder, but God judged his deeds and attitudes without regard to his birthright."

"So was Michael mistaken?" Sam asked. "Or was he lying?"

Castiel shook his head. "I don't know. I don't understand it."

Dean slammed the Bible shut, a fierce light springing into his eyes. "What's the difference? He's wrong about that, and he's wrong about us. We can do this." He raised the half-empty glass of whisky that was still in his hand. "Liberty or death."

"Never surrender," Sam agreed, raising his own glass.

Castiel raised the glass he hadn't yet touched. "To free will."

They clinked their glasses and drained them.

A/N: Oh, the rants I could write about Kripke-verse angelology... but regardless of Michael's other (obvious) errors in "The Song Remains the Same," this one was "a very silly mistake, and quite unworthy of him" (to quote Miss Marple), and I'm going on the assumption that it gives the game away--whether he's lying or just mistaken, SPN!Mikey's as dead wrong about humans as is his Pegasus Galaxy namesake.

"Liberty or death" is the closing line of William B. Travis' letter from the Alamo. "Never surrender" is from one of Winston Churchill's most famous speeches. The quotation from Genesis 4:1-5a is taken from the King James Version.