'Token' in the Bible

And 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:

I do set my bow in the cloud, and it shall be for a token of a covenant between me and the earth.

And God said unto Noah, This is the token of the covenant which I have established between me and all flesh that is upon the earth.

And ye shall be circumcised in the flesh of your foreskin; and it shall be a token of a covenant betwixt me and you.