The word “blameless” as a requirement for bishops and deacons occurs 5 times in I Timothy and Titus. It means unaccusable, unreprovable, not open to censure. The requirements for this office consist entirely of character qualities and family management, except that bishops must be able to teach. The term bishop and elder are used interchangeably for those who have oversight over a congregation, while the deacon deals primarily with physical needs. The term “priest” is never used to describe any New Testament church leader.
Note that the qualifications for church leaders are almost entirely based on character, except that the bishop (overseer) must be able to teach. How many times do you see churches led by a gifted leader who has serious character flaws? In the New Testament churches, brothers with various gifts participated in the services, but the positions of authority were reserved for those of proven character.
General principle: Philipians 1:27,28
Qualifications for Bishops (overseers), also referred to as Elders : I Timothy 3:1-7, Titus 1:6-9; Titus 3:1,2; 3:8-9
Qualifications for Deacons (literally, servants) I Timothy 3:8-12; Acts 6:3
Leaders must not engage in quarrels, be gentle and patient, interpret Word correctly – 2 Timothy 2:15-16; 23-24
Leaders who teach must be prepared at all times, persuasive and willing to correct with patience 2 Timothy 3:2