Jeremiah 15:7 - Matthew Poole's English Annotations on the Holy Bible

I will fan them with a fan in the gates of the land; not a purging fan by affliction, to separate their chaff and dross from them, but a scattering fan. Some translate it into the gates of the earth; so it is the same that God had before said, that he would remove them into all nations ( gates being put for cities): but it is more probable that this is added in pursuit of the metaphor of fanning, men usually choosing barn-doors to fan at, that they may have the advantage of the wind. I will bereave them of children; of children is not in the Hebrew, and is needlessly supplied; it may as well be, of any or all their comforts or good things. I will destroy my people, since they return not from their ways; their privilege claimed of being my people shall not protect them, so long as they go on in their lewd and sinful courses.