1 Corinthians 15:52

In a moment, in the twinkling of an eye, at the last trumpet; for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed.

1 Thessalonians 4:16

For the Lord himself shall descend from heaven, with a shout, with the voice of an archangel, and with the trumpet of God; and the dead in Christ shall rise first.

Hebrews 12:20

For they could not bear that which was commanded, If even a beast touch the mountain, let it be stoned.

Treasury of Scripture Knowledge

Summary

There shall not an hand touch it, but he shall surely be stoned, or shot through; whether it be beast or man, it shall not live: when the trumpet soundeth long, they shall come up to the mount.

Bible References

When the trumpet

1 Corinthians 15:52
In a moment, in the twinkling of an eye, at the last trumpet; for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed.
1 Thessalonians 4:16
For the Lord himself shall descend from heaven, with a shout, with the voice of an archangel, and with the trumpet of God; and the dead in Christ shall rise first.