8 Every sabbath he shall set it in order before the LORD continually, being taken from the children of Israel by an everlasting covenant.
23 And he shall bring them on the eighth day for his cleansing unto the priest, unto the door of the tabernacle of the congregation, before the LORD.
8 And they departed from before Pi-hahiroth, and passed through the midst of the sea into the wilderness, and went three days' journey in the wilderness of Etham, and pitched in Marah.
21 And it shall come to pass, when many evils and troubles are befallen them, that this song shall testify against them as a witness; for it shall not be forgotten out of the mouths of their seed: for I know their imagination which they go about, even now, before I have brought them into the land which I sware.