Never in the history of this people can the time be pointed to when the Church ever attempted to pass judgment on, or execute an apostate as per your statement. There are men living in Utah today who left the Church in the earliest history of our State who feel as secure, and are just as secure and free from molestation from their former associates as you or any other man could be.
EFFICACY OF THE BLOOD OF CHRIST
The Latter-day Saints believe in the efficacy of the blood of Christ. They believe that through obedience to the laws and ordinances of the Gospel they obtain a remission of sins; but this could not be if Christ had not died for them. If you did believe in blood atonement, I might ask you why the blood of Christ was shed? and in whose stead was it shed? I might ask you to explain the words of Paul: "Without shedding of blood is no remission."
UNPARDONABLE SINS
Are you aware that there are certain sins that man may commit for which the atoning blood of Christ does not avail? Do you not know, too, that this doctrine is taught in the Book of Mormon? And is not this further reason why you should discard the Book as well as the name? Is it not safe for us to rely upon the scriptures for the solution of problems of this kind? Let me quote:
From the Book of Mormon:
II Nephi 9:35.—Wo unto the murderer who deliberately killeth, for he shall die.
Alma 1:13, 14.—And thou hast shed the blood of a righteous man, yea, a man who has done much good among this people; and were we to spare thee, his blood would come upon us for vengeance.
Alma 42:19.—Now, if there were no law given—if a man murdered he should die, would he be afraid he would die if he should murder?
From the Bible:
Genesis 9:12, 13.—And whoso sheddeth man's blood, by man shall his blood be shed; for man shall not shed the blood of man.
For a commandment I give, that every man's brother shall preserve the life of man, for in mine own image have I made man. (Inspired translation.)
Luke 11:50.—That the blood of all the prophets, which was shed from the foundation of the world, may be required of this generation.
Hebrews 9:22.—And almost all things are by the law purged with blood; and without shedding of blood is no remission.
Hebrews 10:26-29.—For if we sin wilfully, after that we have received the knowledge of the truth, there remaineth no more sacrifice for sins.
* * * *
He that despised Moses' law died without mercy under two or three witnesses;
Of how much sorer punishment, suppose ye, shall he be thought worthy, who hath trodden under foot the Son of God, and hath counted the blood of the covenant, wherewith he was sanctified, an unholy thing.
(I commend to you the careful reading of these two chapters:)
I John 3:15.—No murderer hath eternal life abiding in him.
I John 5:16.—If any man see his brother sin a sin which is not unto death, he shall ask, and he shall give him life for them that sin not unto death. There is a sin unto death: I do not say that he shall pray for it.
From the Doctrine and Covenants: