'We are Witnesses' in the Bible

And Joshua said unto the people, You are witnesses against yourselves that you have chosen the LORD, to serve him. And they said, We are witnesses.

And all the people that were at the gate, and the elders, said, We are witnesses. The LORD make the woman that is come into your house like Rachel and like Leah, which two did build the house of Israel: and may you do worthily in Ephrathah, and be famous in Bethlehem:

And killed the Prince of life, whom God has raised from the dead; of which we are witnesses.

And we are witnesses of all things which he did both in the land of the Jews, and in Jerusalem; whom they slew and hanged on a tree: