prove vs bear witness

prove and bear witness both are verbs.

Word	Noun	Adjective	Verb	Adverb
prove	No	No	Yes	No
bear witness	No	No	Yes	No

As verbs, prove and bear witness are synonyms defined as:

Other synonyms of prove include evidence, show, testify.

prove (verb)	bear witness (verb)
establish the validity of something, as by an example, explanation or experiment	give testimony in a court of law
obtain probate of	provide evidence for
prove formally; demonstrate by a mathematical, formal proof
provide evidence for
take a trial impression of
cause to puff up with a leaven
increase in volume
put to the test, as for its quality, or give experimental use to
be shown or be found to be