That depends. In many cases in today’s circumstances, no you will not.
Excommunication is an ordinance just like any other. In the Book of Mormon, the ordinance consisted of blotting out the names of those who would not confess their sins, and baptizing or re-baptizing those who confessed and returned again (see Mosiah 26). Since these actions are performed by ordinances, that means that excommunication and reinstatement through re-baptism take abstract intangible concepts and spiritual realities, and put them into physical rites by the use of symbolism. Being cut off from your community, after a church trial and conviction, is a type or symbol of being cut off from the presence of the Lord, or being cursed so as to be unable to achieve redemption for a time, and to be barred from seeing the Second Comforter. A revealed pattern for conducting the trial is contained in D&C 42 and D&C 102. The scriptures describe excommunication like so: “Inasmuch as ye are cut off for transgression, ye cannot escape the buffetings of Satan until the day of redemption” (D&C 104:9; see also D&C 78:12, D&C 82:21, and D&C 132:26).
In connection with excommunication being an ordinance, D&C 132 outlines how the Lord validates any action claimed to be performed by His priesthood:
And verily I say unto you, that the conditions of this law are these: All covenants, contracts, bonds, obligations, oaths, vows, performances, connections, associations, or expectations, that are not made and entered into and sealed by the Holy Spirit of promise, of him who is anointed, both as well for time and for all eternity, and that too most holy, by revelation and commandment through the medium of mine anointed, whom I have appointed on the earth to hold this power (and I have appointed unto my servant Joseph to hold this power in the last days, and there is never but one on the earth at a time on whom this power and the keys of this priesthood are conferred), are of no efficacy, virtue, or force in and after the resurrection from the dead; for all contracts that are not made unto this end have an end when men are dead. D&C 132:7.
Therefore, it follows that excommunication is only valid if it is sealed by the Holy Spirit of Promise. Excommunication must be done in righteousness, or else it is an abomination on the part of the leaders who so take the name of the Lord in vain by falsely accusing and convicting innocent members. A faulty excommunication would be as bad as baptizing little children (see Moroni 8). Perhaps the Lord’s exclamation would be fitting for those who so profane his name: “It were better for him that a millstone were hanged about his neck, and he cast into the sea, than that he should offend one of these little ones” (Luke 17:2).
In fact, the Lord is more explicit in section 121 (and consider that “anointed” has no reference to general authorities in particular at all, but to any person upon whom the Lord has poured out His spirit because of their innocence and sincerity in believing His word; and meaning none of the general authorities unless they, too, have had His spirit poured out upon them, since a physical anointing is meaningless unless it, too, is sealed by the Holy Spirit of Promise):
Cursed are all those that shall lift up the heel against mine anointed, saith the Lord, and cry they have sinned when they have not sinned before me, saith the Lord, but have done that which was meet in mine eyes, and which I commanded them. But those who cry transgression do it because they are the servants of sin, and are the children of disobedience themselves. And those who swear falsely against my servants, that they might bring them into bondage and death—Wo unto them; because they have offended my little ones they shall be severed from the ordinances of mine house. Their basket shall not be full, their houses and their barns shall perish, and they themselves shall be despised by those that flattered them. They shall not have right to the priesthood, nor their posterity after them from generation to generation. It had been better for them that a millstone had been hanged about their necks, and they drowned in the depth of the sea. Wo unto all those that discomfort my people, and drive, and murder, and testify against them, saith the Lord of Hosts; a generation of vipers shall not escape the damnation of hell. D&C 121:16-23.
Ironically, the LDS do not believe that it is necessary to achieve an audience with the resurrected Lord in this life anymore, so the very ordinance they claim to have power to perform (see D&C 104:10) to cut people off from this possibility, has lost its symbolic meaning for them.
The Lord always has had veto power for all of the acts said to be done in his name. Furthermore, when a church loses it’s divine commission, excommunications from that institution become meaningless all the more.
If you are facing excommunication, or have been excommunicated by the LDS Church, how can you tell if you have really deserved that kind of treatment or not? In other words, how can you tell if the Holy Spirit of Promise has sealed a curse upon you because of sin, or how can you tell if someone you know has been excommunicated for the right reasons?
It all depends upon the manner of life that you or they live. King Benjamin said, “But this much I can tell you, that if ye do not watch yourselves, and your thoughts, and your words, and your deeds, and observe the commandments of God, and continue in the faith of what ye have heard concerning the coming of our Lord, even unto the end of your lives, ye must perish. And now, O man, remember, and perish not” (Mosiah 4:30).
You shall know by the fruits of the Spirit, or absence of those fruits…Lehi observed that Laman and Lemuel were being excommunicated by the Lord Himself, as he feared they would be cut off from the presence of the Lord:
My heart hath been weighed down with sorrow from time to time, for I have feared, lest for the hardness of your hearts the Lord your God should come out in the fulness of his wrath upon you, that ye be cut off and destroyed forever; Or, that a cursing should come upon you for the space of many generations; and ye are visited by sword, and by famine, and are hated, and are led according to the will and captivity of the devil. O my sons, that these things might not come upon you, but that ye might be a choice and a favored people of the Lord. But behold, his will be done; for his ways are righteousness forever. 2 Nephi 1:17-19.
Thankfully, it appears the Lord spared Lehi from performing the ordinance of excommunication for his own sons, but suffered Lehi to merely prophesy about it, and performed the excommunications Himself. In all cases of legitimate excommunication, it is the Lord who finalizes the act anyway.
Those who are legitimately excommunicated do not watch their thoughts, words, or deeds anymore; they do not observe the commandments of God such as the Ten Commandments; they do not continue in the faith of what they have heard concerning the coming of the Lord, nor of the Restoration of the Gospel of Jesus Christ through the Prophet Joseph Smith. In a word, they perish. And, as the Book of Mormon points out about the early stages of apostasy: they “dwindle in unbelief”. (This has nothing to do with disbelieving general authorities, and has everything to do with disbelieving scriptures and the Lord. We have gone over the difference in past posts such as this one, but on with the current subject…).
On the other hand, no matter how many people believe someone has been excommunicated legitimately, and no matter how much they may not like that person; or even, no matter how much they believe their leaders’ excommunication decisions are correct and honored by God, if the person who has been excommunicated has done no wrong according to the scriptures, and if they keep the commandments, and continue in the faith they have received, it is more likely that the LDS Church has lifted up their heel against one of the Lord’s anointed, and cried they have sinned when they have not sinned before the Lord. The Lord will not honor such gross misapplications of His “courts of love”, but will instead, according to His word (see 1 Samuel 2:30), honor the person who was unjustly persecuted and shamed by the priestcraft of false leaders (see also 3 Nephi 12:10-12, as well other scriptural examples that are just too numerous to list, such as the Lord’s whole mortal ministry in the New Testament, and the Acts of the Apostles, and the beginning of the Book of Mormon, and all the prophets in the Old Testament who fought against the established “Church” of their day).
Temple blessings and baptismal covenants are untouched and in force in such cases of false excommunication. Who cannot see the logic in this? Little children can understand as much. Fear not. If you are excommunicated or are about to be, ask yourself, “Do I still have faith?” If so, then as Gordon B. Hinckley used to say, “Go forward in faith,” and continue to enjoy the blessings that a just God will never remove from those who are condemned by false brethren.