He replied, "Jacob." Said he, "Your name shall no longer be Jacob, but Israel, for you have striven with God and men, and have prevailed." Jacob asked, "Pray tell me your name." But he said, "You must not ask my name!"

答，“我名叫雅各，“那人说，“你的名不要再叫雅各,要叫以色列，因为你与神与人较力都得了胜，“雅各问,“请将你的名告诉我，“那人却说，“何必问我的名，“

耶鲁公开课 - 旧约导论课程节选

It's like you have a social security number or other ID number, which positively--there might be another person with the same name as you, God forbid, but you at least have your own number, which is guaranteed to be unique to you.

就好比社保号,或者其他身份号码,很有可能,有另外一个人,和你重名,希望这不要发生,但你至少有唯一的识别号,用于区分自己和他人

耶鲁公开课 - 金融市场课程节选