'Matter' 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.

I give you my opinion in this matter: this is to your advantage, who were the first to begin a year ago not only to take action [to help the believers in Jerusalem], but also [the first] to desire to do it.