'Token Of The Covenant' in the Bible

God said, "This is the token of the covenant which I make between me and you and every living creature that is with you, for perpetual generations:

God said to Noah, "This is the token of the covenant which I have established between me and all flesh that is on the earth."

You shall be circumcised in the flesh of your foreskin. It will be a token of the covenant between me and you.