The Catholic Church teaches that if a women’s husband dies, it is morally acceptable for her to remarry. However, if she gets a new husband then which one will she spend eternity in Heaven with? Perhaps both?
In the Gospel of Matthew some Sadducees, who did not believe in the resurrection of the body, tried to stump Jesus. They gave an example of seven brothers. The first died and left his wife to the next brother. This happened seven times. Eventually the same woman had been married to all seven. “After them all, the woman died. In the resurrection, therefore, to which of the seven will she be the wife? For they all had her. But Jesus answered them, “You are wrong, because you know neither the scriptures nor the power of God. For in the resurrection they neither marry nor are given in marriage, but are like angels in heaven.
Now this is not to say that one’s spouse or spouses won’t matter in heaven. But the goal of every sacrament is union with Christ. Of all the sacraments marriage, in a special way, mirrors this union with Christ by the union of the spouses. It is the sign of the marriage of Christ and His people (the Church). The marriage of husband and wife is fulfilled and completed in heaven. Union with God is the ultimate consummation of every marriage.
Fr. Vincent Serpa, O.P.