Cheryl

Don,
While I can see “tender” is a by-product of circumcision, I think there is a much greater application concerning what is cut off not what is left. This is why I believe very strongly that the scripture’s metaphor for sin is “foreskin”. I would agree with you the unprotected part now having the protection cut off is more open to being tender, but again in my article I am not dealing with the after-effects so much as the part that necessitates it to be cut off. Why must the foreskin be cut off? It can be pushed back and that would also create sensitivity. But scripture doesn’t say to pull back the foreskin but to cut it off. The emphasis is on cutting off what must not be there to be in God’s covenant.

Although I rarely appeal to commentaries because I believe that the Bible is the final say, let me copy a few words from other commentaries showing that the foreskin is indeed identified with sin, corruption, evil, body of sins etc.

John Wesley’s explanatory notes:

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

In John Gill’s exposition of the Bible he says:

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, Deu_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”, Col_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, Nah_1:6 and is sometimes signified by a furnace and lake of fire, even his eternal wrath and vengeance

Matt Henry’s commentary on the bible says:

(Jer_4:4): “Circumcise yourselves to the Lord, and take away the foreskin of your heart. Mortify the flesh and the lusts of it. Pare off that superfluity of naughtiness which hinders your receiving with meekness the engrafted word, Jam_1:21. Boast not of, and rest not in, the circumcision of the body, for that is but a sign, and will not serve without the thing signified. It is a dedicating sign. …Circumcision is an obligation to keep the law; lay yourselves afresh under that obligation. It is a seal of the righteousness of faith; lay hold then of that righteousness, and so circumcise yourselves to the Lord.”
II. The danger they are threatened with, which they are concerned to avoid. Repent and reform, lest my fury come forth like fire, which it is now ready to do, as that fire which came forth from the Lord and consumed the sacrifices, and which was always kept burning upon the altar and none might quench it; such is God’s wrath against impenitent sinners, because of the evil of their doings.

Jamieson, Faussett and Brown’s commentary says:

Jer 4:4 –
Remove your natural corruption of heart (Deu_10:16; Deu_30:6; Rom_2:29; Col_2:11).

Keil & Delitzsch Commentary:

“Circumcise you to the Lord” is explained by the next clause: remove the foreskins of your heart. The stress lies in (Hebrew text won’t copy); in this is implied that the circumcision should not be in the flesh merely. In the flesh all Jews were circumcised. If they then are called to circumcise themselves to the Lord, this must be meant spiritually, of the putting away of the spiritual impurity of the heart, i.e., of all that hinders the sanctifying of the heart; see in Deu_10:16. The plur. (Hebrew text won’t copy) is explained by the figurative use of the word, and the reading (Hebrew text won’t copy), presented by some codd., is a correction from Deu_10:16. The foreskins are the evil lusts and longings of the heart.

NET notes:

9 tn Heb “Circumcise yourselves to the LORD and remove the foreskin of your heart.” The translation is again an attempt to bring out the meaning of a metaphor. The mention of the “foreskin of the heart” shows that the passage is obviously metaphorical and involves heart attitude, not an external rite.

The Bible Knowledge Commentary

Jer 4:3-4 –
Jeremiah then used two metaphors to show the need for repentance. The first metaphor pertained to farming. Just as a farmer does not sow his seed on unplowed ground, so God does not sow His seed of blessing in unrepentant hearts. The men of Judah and… Jerusalem needed to break up the unplowed ground of their hearts through repentance. The second metaphor came from the Jewish practice of circumcision. Circumcision was a sign of being under God’s covenant with Israel (cf. Gen_17:9-14). The men, though circumcised physically, needed to circumcise their hearts so that their inward condition matched their outward profession (cf. Deu_10:16; Deu_30:6; Jer_9:25-26; Rom_2:28-29).
Unless Judah did exercise true repentance — not just outward profession — God’s wrath would be released and would burn like fire against the people. And once God’s wrath was released no one could quench it.