What is the meaning of blameless as related to deacons?

What is the meaning of blameless as related to deacons?

While our AV reads "blameless" in the requirements for both the overseers (1 Timothy 3:2) and the deacons (verse 10), the words are slightly different. For overseers, being blameless means that no one can sustain an accusation against their character. Deacons are blameless in a different sense. They have experience in their spiritual work before being entrusted with deacon responsibility. Having proven themselves by doing that work in a way that no one could even raise an accusation against their conduct, they then serve as deacons. Deacons need moral characteristics for their work, but "being found blameless" seems to emphasize the way they handle lesser responsibilities, as their conduct and capability gain the confidence of their fellow-believers. "And let these also first be proved; then let them use the office of a deacon, being found blameless."

D. Oliver