Genesis 1:14; Genesis 4:15; Genesis 9:12-13; Genesis 9:17; Genesis 17:11

14 And God said , Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years:
15 And the LORD said unto him, Therefore whosoever slayeth Cain, vengeance shall be taken on him sevenfold. And the LORD set a mark upon Cain, lest any finding him should kill him.
12 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: 13 I do set my bow in the cloud, and it shall be for a token of a covenant between me and the earth.
17 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.
11 And ye shall circumcise the flesh of your foreskin; and it shall be a token of the covenant betwixt me and you.