'Testimony' in the Bible

And he shall put the incense upon the fire before the LORD, that the cloud of the incense may cover the mercy seat that is upon the testimony, that he die not:

You shall not go around as a gossip among your people, and you are not to act against the life of your neighbor [with slander or false testimony]; I am the Lord.

Without the vail of the testimony, in the tabernacle of the congregation, shall Aaron order it from the evening unto the morning before the LORD continually: it shall be a statute for ever in your generations.