Revelation 7:1

Revelation 7:1. And after these things I saw four angels standing on the four corners of the earth, holding the four winds of the earth, that the wind should not blow on the earth, nor on the sea, nor on any tree.

A perfect calm there must be till God’s people are saved. Not a leaf shall stir to do them damage. Not a dash of foam upon the waters - no movement of wind, or sea, or tree.