“Cain, being the firstborn of his father’s family … might have been the head of this Priesthood, under his father, holding the right by birth; but instead of exercising his birthright on the principles of righteousness, and in accord with the powers of heaven, he was befogged and understood not his true position. … When Cain found that his offering was not accepted, and his brother, Abel’s was accepted, Satan tempted him, and entered into him and led him into the way of all apostates—he became possessed with the spirit of murder. I mention it as the first apostasy of which we have record after the fall of man, through it Cain lost his privilege as firstborn” (Erastus Snow, in Journal of Discourses, 21:370).