'Requirement' in the Bible

Then God said to Abraham, "As for you, you must keep the covenantal requirement I am imposing on you and your descendants after you throughout their generations.

This is my requirement that you and your descendants after you must keep: Every male among you must be circumcised.

Any uncircumcised male who has not been circumcised in the flesh of his foreskin will be cut off from his people -- he has failed to carry out my requirement."