Charles Ellicott Commentary Jeremiah 17:4

"And thou, even of thyself, shalt discontinue from thy heritage that I gave thee; and I will cause thee to serve thine enemies in the land which thou knowest not: for ye have kindled a fire in mine anger which shall burn for ever." — Jeremiah 17:4 (ASV)

Thou, even thyself. —Literally, in or by yourself, an emphatic form for expressing loneliness and abandonment.

Shalt discontinue ... —The word was a half-technical one, used to describe the act of leaving lands untilled and releasing creditors in the sabbatical year (Exodus 23:11; Deuteronomy 15:2). The land would have its rest now, would enjoy its Sabbaths (Leviticus 26:34; 2 Chronicles 36:21), though Judah had failed in obedience to the Law which prescribed them. For the rest of the verse, see Note on Jeremiah 15:14.