Matthew 13:49-50

So will it be at the end of the age. The angels will go forth, and will separate the wicked from the midst of the righteous,

Luke 4:25

But of a truth I say to you, there were many widows in Israel in the days of Elijah, when the heaven was shut up three years and six months, when there came a great famine upon all the land;

Acts 12:23

And immediately an angel of the Lord smote him, because he did not give God the glory; and, having been eaten by worms, he expired.

Revelation 7:1-3

After this I saw four angels standing at the four corners of the earth, holding the four winds of the earth, that no wind should blow on the earth, or on the sea, or upon any tree.

Treasury of Scripture Knowledge

Summary

Either three years' famine; or three months to be destroyed before thy foes, while that the sword of thine enemies overtaketh thee; or else three days the sword of the LORD, even the pestilence, in the land, and the angel of the LORD destroying throughout all the coasts of Israel. Now therefore advise thyself what word I shall bring again to him that sent me.

Three years' famine

Bible References

Three years' famine

Luke 4:25
But of a truth I say to you, there were many widows in Israel in the days of Elijah, when the heaven was shut up three years and six months, when there came a great famine upon all the land;