Blood shed for atonement

1. Alma 24: 13
     13 Behold, I say unto you, Nay, let us retain our swords that they be not stained with the blood of our brethren; for perhaps, if we should stain our swords again they can no more be washed bright through the blood of the Son of our great God, which shall be shed for the atonement of our sins.
2. D&C 76: 69
     69 These are they who are just men made perfect through Jesus the mediator of the new covenant, who wrought out this perfect atonement through the shedding of his own blood.