Certainly there is a big difference between being religious and spiritual. Generally people follow religion to become spiritual. Being Spiritual is connecting with the Divine while being religious is just following a path as seen or preached by some faith. As Jupiter is the pure planet they seek a relationship which is pure and based on complete honesty. If they find that lacking then they withdraw from such relationships. Moreover they can be a probing person and also have a trust deficit. Therefore whatever you say or do you need to be extra conscious in his presence.