'Sign' in the Bible

And he said, Truly I will be with you; and this will be the sign to you that I have sent you: when you have taken the children of Israel out of Egypt, you will give worship to God on this mountain.

And God went on to say to Moses, Say to the children of Israel, The Lord, the God of your fathers, the God of Abraham, of Isaac, and of Jacob, has sent me to you: this is my name for ever, and this is my sign to all generations.

And if they do not have faith in you or give ear to the voice of the first sign, they will have faith in the second sign.

And I will put a division between my people and your people; tomorrow this sign will be seen.

And the blood will be a sign on the houses where you are: when I see the blood I will go over you, and no evil will come on you for your destruction, when my hand is on the land of Egypt.

And this will be for a sign to you on your hand and for a mark on your brow, so that the law of the Lord may be in your mouth: for with a strong hand the Lord took you out of Egypt.

And this will be for a sign on your hand and for a mark on your brow: for by the strength of his hand the Lord took us out of Egypt.

Then Moses took the blood and let it come on the people, and said, This blood is the sign of the agreement which the Lord has made with you in these words.

Say to the children of Israel that they are to keep my Sabbaths; for the Sabbath day is a sign between me and you through all your generations; so that you may see that I am the Lord who makes you holy.

It is a sign between me and the children of Israel for ever; because in six days the Lord made heaven and earth, and on the seventh day he took his rest and had pleasure in it.

For is not the fact of your going with us the sign that I and this people have grace in your eyes, so that we, that is, I and your people, are separate from all other people on the face of the earth?