Adam Clarke's Commentary on the Bible - Exodus 12:14
A memorial - To keep up a remembrance of the severity and goodness, or justice and mercy, of God. Ye shall keep it a feast - it shall be annually observed, and shall be celebrated with solemn religious joy, throughout your generations - as long as ye continue to be a distinct people; an ordinance - a Divine appointment, an institution of God himself, neither to be altered nor set aside by any human authority. For ever - עולם חקת chukkath olam , an everlasting or endless statute,... read more
Adam Clarke's Commentary on the Bible - Exodus 12:13
The blood shall be to you for a token - It shall be the sign to the destroying angel, that the house on which he sees this blood sprinkled is under the protection of God, and that no person in it is to be injured. See Clarke on Exodus 12:11 ; (note). read more