Albert Barnes Commentary Jeremiah 15:7

"And I have winnowed them with a fan in the gates of the land; I have bereaved [them] of children, I have destroyed my people; they returned not from their ways." — Jeremiah 15:7 (ASV)

I will fan them ... - Or, “I have winnowed them with a winnowing shovel.” “Gates of the land” means the places by which people enter or leave it. As God winnows them, they are driven out of the land through all its outlets in every direction.

I will bereave - Rather, “I have bereaved, I have destroyed my people.” Omit “of children.”

Since they return not ... - Rather, “from their ways they have not returned.”