'Testimony' in the Bible

Then Jesus said to him, "See that you do not speak to anyone, but go, show yourself to a priest, and bring the offering that Moses commanded, as a testimony to them."

For out of the heart come evil ideas, murder, adultery, sexual immorality, theft, false testimony, slander.

But if he does not listen, take one or two others with you, so that at the testimony of two or three witnesses every matter may be established.

"Which ones?" he asked. Jesus replied, "Do not murder, do not commit adultery, do not steal, do not give false testimony,

And this gospel of the kingdom will be preached throughout the whole inhabited earth as a testimony to all the nations, and then the end will come.

The chief priests and the whole Sanhedrin were trying to find false testimony against Jesus so that they could put him to death.