1 Thessalonians 4:15-17

ASV_Strongs(i)
  15 G1063 For G5124 this G3004 we say G5213 unto you G1722 by G3056 the word G2962 of the Lord, G3754 that G2249 we G2198 that are alive, G4035 that are left G1519 unto G3952 the coming G2962 of the Lord, G5348 shall G3361 in no G5348 wise precede G3756 them that are fallen asleep.
  16 G3754 For G2962 the Lord G846 himself G2597 shall descend G575 from G3772 heaven, G1722 with G2752 a shout, G1722 with G5456 the voice G743 of the archangel, G2532 and G1722 with G4536 the trump G2316 of God: G2532 and G3498 the dead G1722 in G5547 Christ G450 shall rise G4412 first;
  17 G1899 then G2249 we G2198 that are alive, G4035 that are left, G260 shall together G4862 with G846 them G726 be caught up G1722 in G3507 the clouds, G1519 to G529 meet G2962 the Lord G1519 in G109 the air: G2532 and G3779 so G2071 shall we G3842 ever G2071 be G4862 with G2962 the Lord.