Ellicott's Commentary for English Readers - Exodus 12:27
(27) It is the sacrifice of the Lord’s passover.—Heb., This is a passover-sacrifice to Jehovah. The emphatic word is “Passover;” and it was the meaning of this term which was especially to be explained. The explanation would involve an historical account of the circumstances of the institution, such as would be apt to call forth feelings of gratitude and devotion. read more
Ellicott's Commentary for English Readers - Exodus 12:24
(24) This thing.—Not the sprinkling of the blood, which was never repeated after the first occasion, but the sacrifice of the lamb, commanded in Exodus 12:21. read more