1 Timothy 3:10

Additionally, they must first be tested. Then, if they are above reproach, let them serve as deacons.

And let these also first be proved; then let them use the office of a deacon, being found blameless.

Let them also first be tested; then let them serve if they are blameless.

Note or, serve as deacons

And let these also first be proved; then let them serve as deacons, if they be blameless.