1 Corinthians 15:50-52

I tell you this, brothers and sisters: Flesh and blood cannot have a part in the kingdom of God. Something that will ruin cannot have a part in something that never ruins. But look! I tell you this secret: We will not all sleep in death, but we will all be changed. It will take only a second—as quickly as an eye blinks—when the last trumpet sounds. The trumpet will sound, and those who have died will be raised to live forever, and we will all be changed.