'Witness' in the Bible

Why do you force me to witness injustice? Why do you put up with wrongdoing? Destruction and violence confront me; conflict is present and one must endure strife.

For the message is a witness to what is decreed; it gives reliable testimony about how matters will turn out. Even if the message is not fulfilled right away, wait patiently; for it will certainly come to pass -- it will not arrive late.

A curse on him who gives his neighbour the wine of his wrath, making him overcome with strong drink from the cup of his passion, so that you may be a witness of their shame!