And all the people answered together, and said, All that the LORD hath spoken we will do. And Moses returned the words of the people unto the LORD. And all the people answered, etc. - The people, having such gracious advantages laid before them, most cheerfully consented to take God for their portion; as he had graciously promised to take them for his people. Thus a covenant was made, the parties being mutually bound to each other.
Moses returned the words - When the people had on their part consented to the covenant, Moses appears to have gone immediately up to the mountain and related to God the success of his mission; for he was now on the mount, as appears from Exodus 19:14.