'Witness' in the Bible

but to be a witness between us and you, and between our generations after us, that we might do service to Jehovah before him with our burnt-offerings, and with our sacrifices, and with our peace-offerings; that your children may not say to our children in future, Ye have no portion in Jehovah.

And we said, If it shall be that in future they so say to us and to our generations, we will say, Behold the pattern of the altar of Jehovah which our fathers made, not for burnt-offering, nor for sacrifice, but as a witness between us and you.

And the children of Reuben and the children of Gad gave a name to the altar; for it is a witness between us that Jehovah is God.

And Joshua said unto all the people, Behold, this stone shall be a witness unto us, for it hath heard all the words of Jehovah which he spoke unto us; and it shall be a witness against you, lest ye deny your God.