16 Again, our Lord explained to the Sadducees with regard to the resurrection of the dead, when they brought forth to Him the parable of the woman who was married to seven husbands, and said to Him:— Lo! The woman was wife of them all; in the Resurrection of the dead, to which of them shall she be wife? Then our Lord said to them:— You do greatly err, and you know not the Scriptures nor the power of God. For they who are worthy of that world and of that Resurrection from the dead, they that are men do not take wives, nor are the women married to husbands, for they cannot die, for they are as the angels of God and children of the Resurrection. But concerning the Resurrection, that the dead shall rise, have you not read in the Scripture that God said to Moses out of the bush, “I am the God of Abraham, of Isaac and of Jacob.” And lo! He is not God of the dead, for they all are alive unto Him.
Source: Demonstrations (New Advent)