Are children tainted with original sin?
Absolutely not. There is no such thing as original sin as such is defined in the creeds of Christendom. Such a concept denies the efficacy of the atonement. Our revelation says: “Every spirit of man was innocent in the beginning”—meaning that spirits started out in a state of purity and innocence in preexistence—”and God having redeemed man from the fall, men became again, in their infant state, innocent before God” (D&C 93:38)—meaning that all children start out their mortal probation in purity and innocence because of the atonement. Our revelations also say, “The Son of God hath atoned for original guilt, wherein the sins of the parents cannot be answered upon the heads of the children, for they are whole from the foundation of the world.” (Moses 6:54.