Hello everyone,
This is what I think the scriptures teach about this:
First of all Christ is Deity, He has the authority and power to do what man cannot.
So not every situation that pertains to man necessarily pertains to Christ. For example, a man and woman who are married today cannot simply say, "We don't like this marriage covenant we are in that was instituted by God... so we're going to do away with His and make a new covenant of our own." It is God who joins man and woman together in the marriage covenant under His authority and rule.
On the other hand, the scriptures say that Israel committed adultery, that the LORD wrote a bill of divorce and sent her on her way (Jer. 3:8)... but then after that, the scriptures also say: "Behold, the days are coming," 'says the LORD,' "when I will make a new covenant with the house of Israel and with the house of Judah."
Under the old law, if a man and his wife divorced and either one remarried, then the original two could not be joined together again. Yet that seems... and I emphasize "seems"... to be what the LORD did. He put away Israel and wrote a bill of divorce, but then He said that the time would come when He would "make a new covenant with the house of Israel and with the house of Judah."
The apostle Paul wrote of "the Israel of God" (Gal. 6:16). I believe that he was referring to the LORD'S church, who would serve Him under the New Covenant. Peter also wrote of this new spiritual "nation": "But you are a chosen race, a royal priesthood, a holy nation, a people for God's own possession..." (1 Pt 2:9).
So Christ did away with the old covenant and instituted the new one, and in the new one, the church is His bride now (Eph. 5:27, 31-32; 2 Cor. 11:2).
Sorry it took me a while to get my point across (I never was very good at brevity!)