See the Deuteronomy 10:16 note. Nature, such as it is in itself, unconsecrated to God, is to be removed from our inner selves, that a new and spiritual nature may take its place.

Lest my fury ... - God is long-suffering, but unless this change take place, the time of judgment must at length come to all as it came to Jerusalem - "like fire" (compare 1 Corinthians 3:13; Philippians 2:12-13).

Jeremiah 4:5-6:30 "God's Judgment upon the Unrepentant"

A group of prophecies now commences, extending to Jeremiah 10:25, but broken at the beginning of Jeremiah 7 by a new heading. The subject of them all is the same, namely, the approaching devastation of Judaea by a hostile army in punishment of its persistence in idolatry. The prophecy of Jeremiah 7 was probably written in the first year of Jehoiakim, while as regards the rest they probably extended over a considerable period of time. This group, which we may reasonably believe to have come down to us much as it stood in Jehoiakim's scroll, gives us a general view of the nature of Jeremiah's efforts during that important period, when under Josiah a national reformation was still possible, and the exile might have been averted. The prophecy Jeremiah 7, spoken in the first year of Jehoiakim, when the probation of Judah was virtually over, was the solemn closing of the appeal to the conscience of the people, and a protest, while the new king was still young upon his throne, against that ruinous course upon which he so immediately entered.

Circumcise yourselves - Put away every thing that has a tendency to grieve the Spirit of God, or to render your present holy resolutions unfruitful.

Circumcise yourselves to the Lord,.... Or, "be ye circumcised", as the Septuagint and Vulgate Latin versions render it. This is to be understood of the circumcision of the heart, as Kimchi observes; and as appears from the following words:

and take away the foreskins of your heart, ye men of Judah, and inhabitants of Jerusalem; this is the true spiritual circumcision; and they that are possessed of it are the circumcision, the only truly circumcised persons; and they are such who have been pricked to the heart, and thoroughly convinced of sin; who have had the hardness of their hearts removed, and the impurity of it laid open to them; which they have beheld with shame and loathing, and have felt an inward pain on account of it; and who have been enabled to deny themselves, to renounce their own righteousness, and put off the body of the sins of the flesh: and though men are exhorted to do this themselves, yet elsewhere the Lord promises to do it for them, Deuteronomy 30:6, and indeed it is purely his own work; or otherwise it could not he called, as it is, "circumcision without hands", and "whose praise is not of man, but of God", Colossians 2:11, and the reason of this exhortation, as before, is to convince those Jews, who were circumcised in the flesh, and rested and gloried in that, that their hearts were not circumcised, and that there was a necessity of it, and they in danger for want of it; as follows:

lest my fury come forth like fire; to which the wrath of God is sometimes compared, Nahum 1:6 and is sometimes signified by a furnace and lake of fire, even his eternal wrath and vengeance:

and burn that none can quench it; such is the fire of divine wrath; it is unquenchable; it is everlasting, Mark 9:43,

because of the evil of your doings; which are so provoking to the eyes of his glory; the sins of men are the fuel to the fire of his wrath, and cause it to burn to the lowest hell, without the least degree of mercy. The Targum is,

"turn to the worship of the Lord, and take away the wickedness of your hearts, lest my fury burn as fire, and consume without mercy, because of the evil of your doings.''

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.

4:4 Circumcise - Put away your corruptions. Heart - Let it be inward, not outward in the flesh only.

4. Remove your natural corruption of heart (De 10:16; 30:6; Ro 2:29; Col 2:11).

4:3,4 An unhumbled heart is like ground untilled. It is ground which may be improved; it is our ground let out to us; but it is fallow; it is over-grown with thorns and weeds, the natural product of the corrupt heart. Let us entreat the Lord to create in us a clean heart, and to renew a right spirit within us; for except a man be born again, he cannot enter into the kingdom of heaven.