'Proved' in the Bible

For [you can look back and] see what an earnestness and authentic concern this godly sorrow has produced in you: what vindication of yourselves [against charges that you tolerate sin], what indignation [at sin], what fear [of offending God], what longing [for righteousness and justice], what passion [to do what is right], what readiness to punish [those who sin and those who tolerate sin]! At every point you have proved yourselves to be innocent in the matter.

For if I have boasted to him at all concerning you, I was not disappointed. But just as everything we ever said to you was true, so our boasting [about you] to Titus has proved true also.

Now I have become foolish; you have forced me [by questioning my apostleship]. Actually I should have been commended by you [instead of being treated disdainfully], for I was not inferior to those super-apostles, even if I am nobody.