'Witness' in the Bible

The gold mice represented the number of all the Philistine towns belonging to the five lords, both fortified towns and unwalled villages. The large stone, beside which they put the Ark of the LORD, is a witness to this day in the field of Joshua of Beth-shemesh.

He told them, "Today the LORD is testifying, along with his anointed, that you haven't found any bribes in my possession." They said, "He's a witness."

Jonathan told David, "The LORD God of Israel is my witness that I'll carefully question my father by tomorrow or the next day. And if the response is favorable for David, will I not then send word to you and let you know?

As for the matter about which you and I spoke, remember that the LORD is a witness between us forever."