tn Or “disciplinarian,” “custodian,” or “guide.” According to BDAG 748 s.v. παιδαγωγός, “the man, usu. a slave … whose duty it was to conduct a boy or youth … to and from school and to superintend his conduct gener.; he was not a ‘teacher’ (despite the present mng. of the derivative ‘pedagogue’ … When the young man became of age, the π. was no longer needed.” L&N 36.5 gives “guardian, leader, guide” here.

tn Or “be justified.”