Luke 20:29

Mystically, this woman is the synagogue, which had seven husbands, as it is said to the Samaritan, Thou hadst five husbands, (John 4:18.) because the Samaritan follows only the five books of Moses, the synagogue for the most part seven. And from none of them has she received the seed of an hereditary offspring, and so can have no part with her husbands in the resurrection, because she perverts the spiritual meaning of the precept into a carnal. For not any carnal brother is pointed at, who should raise seed to his deceased brother, but that brother who from the dead people of the Jews should claim unto himself for wife the wisdom of the divine worship, and from it should raise up seed in the Apostles, who being left as it were unformed in the womb of the synagogue, have according to the election of grace been thought worthy to be preserved by the admixture of a new seed.

They devise this story in order to convict those of folly, who assert the resurrection of the dead. Hence they object a base fable, that they may deny the truth of the resurrection.

Or these seven brothers answer to the reprobate, who throughout the whole life of the world, which revolves in seven days, are fruitless in good works, and these being carried away by death one after another, at length the course of the evil world, as the barren woman, itself also passes away.