E
No the covenant was conditional from the start..
Genesis 17:9-14
King James Version (KJV)
9And God said unto Abraham, Thou shalt keep my covenant therefore, thou, and thy seed after thee in their generations.
10This is my covenant, which ye shall keep, between me and you and thy seed after thee; Every man child among you shall be circumcised.
11And ye shall circumcise the flesh of your foreskin; and it shall be a token of the covenant betwixt me and you.
12And he that is eight days old shall be circumcised among you, every man child in your generations, he that is born in the house, or bought with money of any stranger, which is not of thy seed.
13He that is born in thy house, and he that is bought with thy money, must needs be circumcised: and my covenant shall be in your flesh for an everlasting covenant.
14And the uncircumcised man child whose flesh of his foreskin is not circumcised, that soul shall be cut off from his people; he hath broken my covenant.
Genesis 17:9-14
King James Version (KJV)
9And God said unto Abraham, Thou shalt keep my covenant therefore, thou, and thy seed after thee in their generations.
10This is my covenant, which ye shall keep, between me and you and thy seed after thee; Every man child among you shall be circumcised.
11And ye shall circumcise the flesh of your foreskin; and it shall be a token of the covenant betwixt me and you.
12And he that is eight days old shall be circumcised among you, every man child in your generations, he that is born in the house, or bought with money of any stranger, which is not of thy seed.
13He that is born in thy house, and he that is bought with thy money, must needs be circumcised: and my covenant shall be in your flesh for an everlasting covenant.
14And the uncircumcised man child whose flesh of his foreskin is not circumcised, that soul shall be cut off from his people; he hath broken my covenant.
4 “As for Me, behold, My covenant is with you, and you shall be a father of many nations. 5 No longer shall your name be called Abram, but your name shall be Abraham; for I have made you a father of many nations. 6 I will make you exceedingly fruitful; and I will make nations of you, and kings shall come from you. 7 And I will establish My covenant between Me and you and your descendants after you in their generations, for an everlasting covenant, to be God to you and your descendants after you. 8 Also I give to you and your descendants after you the land in which you are a stranger, all the land of Canaan, as an everlasting possession; and I will be their God.”
Eternal means forever. If it does not mean forever. the eternal life God gave us does not mean anything.
The sign of the circumcision was a condition made to whoever wanted to be a PART OF THIS earthly land covenant. For this part was given to only Abraham, Issac and Jacob. Not to the rest of his descendants. God proves this when he said it was not given to Ishmael (who was his descendant) but to one who would be born of sarah. The same goes with the mosaic covenant. It had many purposes.
Again look at lev 26.