Matthew 19:28

28.Verily I say to you. That the disciples may not think that they have lost their pains, and repent of having begun the course, Christ warns them that the glory of his kingdom, which at that time was still hidden, was about to be revealed. As if he had said, “There is no reason why that mean condition should discourage you; for I, who am scarcely equal to the lowest, will at length ascend to my throne of majesty. Endure then for a little, till the time arrive for revealing nay glory.” And what does he then promise to them? That they shall be partakers of the same glory.

You also shall sit on twelve thrones By assigning to them thrones, from which they may judge the twelve tribes of Israel, he compares them to assessors, or first councilors and judges, who occupy the highest seats in the royal council. We know that the number of those who were chosen to be apostles was twelve, in order to testify that, by the agency of Christ, God purposed to collect the remnant of his people which was scattered. This was a very high rank, but hitherto was concealed; and therefore Christ holds their wishes in suspense till the latest revelation of his kingdom, when they will fully receive the fruit of their election. And though the kingdom of Christ is, in some respects, manifested by the preaching of the Gospel, there is no doubt that Christ here speaks of the last day.

In the regeneration. Some connect this term with the following clause. In this sense, regeneration would be nothing else than the renovation which shall follow our restoration, when life shall swallow up what is mortal, and when our mean body shall be transformed into the heavenly glory of Christ. But I rather explain regeneration as referring to the first coming of Christ; for then the world began to be renewed, and arose out of the darkness of death into the light of life. And this way of speaking occurs frequently in the Prophets, and is exceedingly adapted to the connection of this passage. For the renovation of the Church, which had been so frequently promised, had raised an expectation of wonderful happiness, as soon as the Messiah should appear; and therefore, in order to guard against that error, Christ distinguishes between the beginning and the completion of his reign.