1 Corinthians 15
The last trumpet, we shall not all sleep... the dead are raised incorruptible...
This is the same Trumpet of God that sounds as Christ returns in 1 Thessalonians 4:15, and Christ brings with Him all those who had slept in Christ, meaning they had physically died and gone to be with the Lord in heaven.
50 Now this I say, brethren, that flesh and blood cannot inherit the kingdom of God; nor does corruption inherit incorruption. 51
Behold, I tell you a [m]mystery: We shall not all sleep, but we shall all be changed— 52 in a moment, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, and the dead will be raised incorruptible, and we shall be changed. 53 For this corruptible must put on incorruption, and this mortal
must put on immortality. 54 So when this corruptible has put on incorruption, and this mortal has put on immortality, then shall be brought to pass the saying that is written: “Death is swallowed up in victory.”
55 “O[
n] Death, where
is your sting?
O Hades, where
is your victory?”
56 The sting of death
is sin, and the strength of sin
is the law. 57 But thanks
be to God, who gives us the victory through our Lord Jesus Christ.