3 While he was sitting on the Mount of Olives,+ the disciples approached him privately, saying: “Tell us, when will these things be, and what will be the sign of your presence+ and of the conclusion of the system of things?”+

16 because the Lord himself will descend from heaven with a commanding call, with an archangel’s+ voice and with God’s trumpet, and those who are dead in union with Christ will rise first.+