Charles Ellicott Commentary Jeremiah 4:1

"If thou wilt return, O Israel, saith Jehovah, if thou wilt return unto me, and if thou wilt put away thine abominations out of my sight; then shalt thou not be removed;" — Jeremiah 4:1 (ASV)

If you will return. —The “if” implies a return from the hopes with which Jeremiah 3:0 ended to the language of misgiving, and so, inferentially, of earnest exhortation.

Abominations. —Literally, things of shame, as in Jeremiah 3:24; the idols which Israel had worshipped.

Then you shall not remove. —Better, as continuing the conditions of forgiveness, if you will not wander.