'Sign' in the Bible

He answered, “I will certainly be with you, and this will be the sign to you that I have sent you: when you bring the people out of Egypt, you will all worship God at this mountain.”

“If they will not believe you and will not respond to the evidence of the first sign, they may believe the evidence of the second sign.

I will make a distinction between My people and your people. This sign will take place tomorrow.”

Let it serve as a sign for you on your hand and as a reminder on your forehead, so that the Lord’s instruction may be in your mouth; for the Lord brought you out of Egypt with a strong hand.

So let it be a sign on your hand and a symbol on your forehead, for the Lord brought us out of Egypt by the strength of His hand.”

“Tell the Israelites: You must observe My Sabbaths, for it is a sign between Me and you throughout your generations, so that you will know that I am Yahweh who sets you apart.

It is a sign forever between Me and the Israelites, for in six days the Lord made the heavens and the earth, but on the seventh day He rested and was refreshed.”