'Matter' in the Bible

No, a person is a Jew inwardly, and circumcision is a matter of the heart, brought about by the Spirit, not by a written law. That person's praise will come from God, not from people.

Therefore, the promise is based on faith, so that it may be a matter of grace and may be guaranteed for all of Abraham's descendants not only for those who were given the Law, but also for those who share the faith of Abraham, who is the father of us all.