They are not offices, check the Greek. They are functions of service. When Paul said 'I magnify my office', he was really saying 'I magnify my service' or function. Romans11:13.In the Bible, there are church offices of apostle, overseer (bishop/pastor), and servant (deacon). Title always comes with office.
Show me one case in the NT where someone was addressed with a title in front of his name. Others have said correctly that when they referred to fathers in the third person that is totally different than addressing someone face to face with a religious title that causes the division that Christ condemned. Not to mention the arrogance of one believer being more special than another.
