If I told you earthly things and ye believe not, how shall ye believe if I tell you heavenly things?

If you have no belief when my words are about the things of earth, how will you have belief if my words are about the things of heaven?

Εαν τα επιγεια σας ειπον και δεν πιστευητε, πως, εαν σας ειπω τα επουρανια, θελετε πιστευσει;

If I have told you earthly things, and ye believe not, how shall ye believe, if I tell you of heavenly things?