According to the Jewish Bible, circumcision was enjoined upon the biblical patriarch Abraham, his descendants and their slaves as "a token of the covenant" concluded with him by God for all generations, an "everlasting covenant" (Genesis 17:13), thus it is commonly observed by the Abrahamic religions.
The penalty of non-observance was karet, excision from the people (Gen. 17:10-14, 21:4; Lev. 12:. Non-Israelites had to undergo circumcision before they could be allowed to take part in the feast of Passover (Ex. 12:48), or marry into a Jewish family (Gen. 34:14-16).
It was "a reproach" for an Israelite to be uncircumcised (Josh. 5:9.) The name arelim (uncircumcised) became an opprobrious term, denoting the Philistines and other non-Israelites (I Sam. 14:6, 31:4; II Sam. i. 20) and used synonymously with tame (unclean) for heathen (Isa. 52:1). The word 'arel' (uncircumcised) is also employed for "unclean" (Lev. 26:41, "their uncircumcised hearts"; compare Jer. 9:25; Ezek. xliv. 7, 9); it is even applied to the first three years' fruit of a tree, which is forbidden (Lev. 19:2.
However, the Israelites born in the wilderness after the exodus from Egypt apparently did not carry out the practice of circumcision. According to Josh. 5:2-9, "all the people that came out" of Egypt were circumcised, but those "born in the wilderness" were not. In any case, we are told that Joshua, before the celebration of the Passover, had them circumcised at Gilgal.
Deut 10:16 says: "Circumcise the foreskin of your heart," (also quoted in Jer 4:4, New JPS translates as: "Cut away, therefore, the thickening about your hearts") along with Jer 6:10: To whom shall I speak, and give warning, that they may hear? behold their ear is uncircumcised, and they cannot hearken: ... (New JPS translates: "Their ears are blocked"). Some interpret this as giving the rite a spiritual meaning; circumcision as a physical act being enjoined nowhere in the book. Jer 9:25-26 says that circumcised and uncircumcised will be punished alike by the Lord; for "all the nations are uncircumcised, and all the house of Israel are uncircumcised in heart." The New JPS translation adds the note: "uncircumcised of heart: I.e., their minds are blocked to God's commandments." Non-Jewish tribes that practiced circumcision were described as being "circumcised in uncircumcision."^{[citation needed]}
The Bible contains several narratives in which circumcision is mentioned. There is the circumcision and massacre of the Shechemites (Genesis 34:1-35:5), the hundred foreskin dowry (1 Samuel 18:25-27) and the story of the LORD threatening to kill Moses, and being placated by Zipporah's circumcision of their son (Exodus 4:24-26), and the Circumcision at Gilgal of Joshua 5.

I think they're trying to off you by making you wallow in your own smegma, Tozzy. Are you liked very much?