The LORD said to him, "Therefore whoever slays Cain, vengeance will be taken on him sevenfold." the LORD appointed a sign for Cain, lest any finding him should strike him.

And God said, This is the sign of the covenant that I set between me and you and every living soul that is with you, for everlasting generations:

I set my bow in the clouds, and it shall be for a sign of the covenant between me and the earth.

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

And ye shall circumcise the flesh of your foreskin; and that shall be a sign of the covenant between me and you.

They must indeed be circumcised, whether born in your house or bought with money. The sign of my covenant will be visible in your flesh as a permanent reminder.

And when God sent me wandering from my father's house, I said to her, Let this be the sign of your love for me; wherever we go, say of me, He is my brother.

And said, Praise be to the Lord, the God of my master Abraham, who has given a sign that he is good and true to my master, by guiding me straight to the house of my master's family.

And Jacob said, Not so; but if I have grace in your eyes, take them as a sign of my love, for I have seen your face as one may see the face of God, and you have been pleased with me.

And he said, I will give you a young goat from the flock. And she said, What will you give me as a sign till you send it?

Then Judah sent his friend Hirah with the young goat, to get back the things which he had given as a sign to the woman: but she was not there.

So he gave them his blessing that day, saying, You will be the sign of blessing in Israel, for they will say, May God make you like Ephraim and Manasseh; and he put Ephraim before Manasseh.