Matthew 24:4, 6-9, 12, 20-22, 31, 34, 36-51
Matthew 24:31 NIV
And he will send his angels with a loud trumpet call, and they will gather his elect from the four winds, from one end of the heavens to the other.
Matthew 24:34 NIV
Truly I tell you, this generation will certainly not pass away until all these things have happened.