"I haven't chosen to make an issue of faith"

This quote by Peter Garrett suggests that he is not attempting to make a huge deal out of faith. He is not attempting to push his beliefs onto others or make a declaration about his own faith. Rather, he is selecting to keep his faith to himself and not make it a public concern. This could be translated as a sign of regard for other people's beliefs and a desire to keep his faith personal. It could also be seen as a sign of humility, as he is not attempting to draw attention to himself or his beliefs. By not making a concern of faith, Peter Garrett is revealing that he is open to different beliefs and is not trying to impose his own on others.