Psalms 50:18 - Exposition

When thou sawest a thief, then thou consentedst unto him . God tests his professed, but really disobedient, servants by the second table of the Decalogue, and finds them wanting. If they do not themselves actually rob, they give their consent, they become accessories before the fact, to robbery. They probably participate in the gains. And hast been partaker with adulterers; rather, and with adulterers is thy portion ; i.e. thou hast thrown in thy lot with them, hast adopted their principles, hast set at nought the seventh no less than the eighth commandment.