They cannot die
Because they are
They are children
Of the resurrection.”
οὐδὲ γὰρ ἀποθανεῖν ἔτι δύνανται, ἰσάγγελοι γάρ εἰσιν, καὶ υἱοί εἰσιν Θεοῦ τῆς ἀναστάσεως υἱοὶ ὄντες.
Luke indicated that Jesus gave an explanation. He said that in the resurrection they would not be able to die anymore or be mortal (οὐδὲ γὰρ ἀποθανεῖν ἔτι δύνανται), because they would be like angels (ἰσάγγελοι γάρ εἰσιν). Once again, this is unique usage of the word ἰσάγγελοι in the Greek biblical literature that means equal to angels or like the angels. They would be children or sons of God (καὶ υἱοί εἰσιν Θεοῦ), because they were children or sons of the resurrection (τῆς ἀναστάσεως υἱοὶ ὄντες). This is quite a profound theological statement. The resurrected humans would be like angels so that marriage and procreation would be out of the question. Both Matthew, chapter 22:30, with Mark, chapter 12:25, almost word for word, have simpler statements about humans being angels in heaven. Mark simply said that they would all be like angels in heaven (ἀλλ’ εἰσὶν ὡς ἄγγελοι ἐν τοῖς οὐρανοῖς). Matthew simply said they would all be like angels in heaven (ὡς ἄγγελοι ἐν τῷ οὐρανῷ εἰσιν). Thus, these humans would take on an angelic way of life, with no reason to procreate in marriage. Would you like a sexless angelic heaven?