and then the sign of the Son of Man will appear in heaven, and then all the tribes of the earth will mourn, and they will see the Son of Man coming on the clouds of heavena with power and great glory. Bible see other translations
From Dan. 7:13

“Son of Man coming on the clouds of heaven.” Jesus’ coming in the clouds is a reference to Daniel 7:13. This is the “Second Coming” of Christ. Jesus spoke of his Second Coming and the events that surround it quite often. Some of these include, Matthew 16:27 (cp. Mark 8:38; Luke 9:26); Matthew 24:30-44 (Mark 13:26; Luke 21:27); Matthew 25:31-46; 26:64 (Mark 14:62); Mark 8:38; Luke 12:40; 17:24-30; John 14:3, 18; 21:22). See commentary on Matthew 16:27.

Commentary for: Matthew 24:30