2. That God had rescued them from misery, had raised them to what they were, not only out of poverty, but out of slavery (v. 13), which laid them under much stronger obligations to serve him and under a yet deeper guilt in serving other gods. (1.) God brought Israel out of Egypt on purpose that they might serve him, and by redeeming them out of bondage acquired a special title to them and to their service. (2.) He preserved them, as sheep are kept by the shepherd's care. He preserved them from Pharaoh's rage at the sea, even at the Red Sea, protected them from all the perils of the wilderness, and provided for them. (3.) He did this by a prophet, Moses, who, though he is called king in Jeshurun (Deut. xxxiii. 5), yet did what he did for Israel as a prophet, by direction from God and by the power of his word. The ensign of his authority was not a royal sceptre, but the rod of God; with that he summoned both Egypt's plagues and Israel's blessings. Moses, as a prophet, was a type of Christ (Acts iii. 22), and it is by Christ as a prophet that we are brought out of the Egypt of sin and Satan by the power of his truth. Now this shows how very unworthy and ungrateful this people were, [1.] In rejecting their God, who had brought them out of Egypt, which, in the preface to the commandments, is particularly mentioned as a reason for the first, why they should have no other gods before him. [2.] In despising and persecuting his prophets, whom they should have loved and valued, and have studied to answer God's end in sending them, for the sake of that prophet by whom God had brought them out of Egypt and preserved them in the wilderness. Note, The benefit we have had by the word of God greatly aggravates our sin and folly if we put any slight upon the word of God.