Genesis 24:49

And now, if ye will deal kindly and truly with my master, tell me; and if not, tell me; that I may turn to the right hand or to the left. Eliezer appeals directly to the kindness and faithfulness which Abraham should surely be entitled to from his relatives. At any rate, he expected them to give him definite information as to their stand in the matter, in order that he might know exactly what course to pursue next. Mark that in a proper and valid betrothal, as Luther here points out, the suit is directed to the parents of the young woman first, and a secret engagement has no validity before God.