God's redemption of the Israelites is a redemption for a purpose, a purpose that doesn't become clear until we get to Sinai, for at Sinai the Israelites will become God's people, bound by a covenant.

上帝对犹太人的救赎是有目的的，直到了西奈，目的才显现出来，在西奈，犹太人将成为上帝的子民，与契约绑定。

耶鲁公开课 - 旧约导论课程节选