Circumcise yourselves; put away your natural corruptions; which was signified by the sacrament of circumcision, Colossians 2:11; see 1 Peter 3:21; the same thing with the other, but expressed in other words. To the Lord; or, to me, viz. so as I will approve. Take away the fore-skins of your heart; let it be inward, not outward, viz. in the flesh only, (in which you so much glory in the sight of men,) but take away that brawniness and obstinacy that (having to do with God, who hath respect unto the heart) is upon your hearts, Deuteronomy 10:16 Ezekiel 44:9 Acts 7:51 Romans 2:29. Lest my fury come forth like fire, and burn that none can quench it; not only fierce and consuming, like fire, Deuteronomy 4:24; but unquenchable, especially when it gets among your thorns, Jeremiah 4:3, which are very apt to kindle, Isaiah 10:17; lest you proceed so far in your obstinacy that I will not be appeased, Jeremiah 21:12 Amos 5:6; there being nothing that stirs up God to anger but sin, as in the next clause, which is an explication of those metaphors of thorns and foreskins.
Related Commentaries of Jeremiah 4:4
Jeremiah 4:4
4 Circumcise yourselves to the LORD, and take away the foreskins of your heart, ye men of Judah and inhabitants of Jerusalem: lest my fury come forth like fire, and burn that none can quench it, because of the evil of your doings.