Bible Verses About Witness: Two necessary to establish a fact

"'If anyone kills someone, the murderer is to be put to death upon the testimony of witnesses; but the testimony of only one witness will not suffice to cause a person to be put to death.

The death sentence is to be carried out only if there was testimony from two or three witnesses; he may not be sentenced to death on the testimony of only one witness.

"One witness alone will not be sufficient to convict a person of any offense or sin of any kind; the matter will be established only if there are two or three witnesses testifying against him.

If he doesn't listen, take one or two others with you so that every accusation can be supported by the testimony of two or three witnesses.l

And even in your Torah it is written that the testimony of two people is valid.

This will be the third time that I have come to visit you. Any charge must be established by the testimony of two or three witnesses.

Never listen to any accusation against a leader unless it is supported by two or three witnesses.

Someone who disregards the Torah of Moshe is put to death without mercy on the word of two or three witnesses.