Matthew 13:49-50

So will it be at the close of the age. The angels will go out and separate the wicked from the righteous,

Acts 12:23

Instantly an angel of the Lord struck him, because he did not give God the glory; and he was attacked with worms, and died.

Revelation 6:15-16

Then all the kings of the earth, and the princes, and the generals, and the rich, and the powerful, and every slave and free man, 'hid themselves in the caves and under the rocks' of the mountains;

Revelation 19:17-18

Then I saw an angel standing on the sun. He cried in a loud voice to all the birds that fly in mid-heaven-- 'Gather and come to the great feast of God,

Treasury of Scripture Knowledge

Summary

And the LORD sent an angel, which cut off all the mighty men of valour, and the leaders and captains in the camp of the king of Assyria. So he returned with shame of face to his own land. And when he was come into the house of his god, they that came forth of his own bowels slew him there with the sword.

Bible References

Angel

Matthew 13:49
So will it be at the close of the age. The angels will go out and separate the wicked from the righteous,
Acts 12:23
Instantly an angel of the Lord struck him, because he did not give God the glory; and he was attacked with worms, and died.

The leaders

Revelation 6:15
Then all the kings of the earth, and the princes, and the generals, and the rich, and the powerful, and every slave and free man, 'hid themselves in the caves and under the rocks' of the mountains;
Revelation 19:17
Then I saw an angel standing on the sun. He cried in a loud voice to all the birds that fly in mid-heaven-- 'Gather and come to the great feast of God,