Adam Clarke's Commentary on the Bible - Exodus 12:6
Ye shall keep it up until the fourteenth day - The lamb or kid was to be taken from the flock on the tenth day, and kept up and fed by itself till the fourteenth day, when it was to be sacrificed. This was never commanded nor practiced afterwards. The rabbins mark four things that were required in the first passover that were never required afterwards: The eating of the lamb in their houses dispersed through Goshen. The taking the lamb on the tenth day. The striking of its blood on... read more
Adam Clarke's Commentary on the Bible - Exodus 12:5
Without blemish - Having no natural imperfection, no disease, no deficiency or redundancy of parts. On this point the rabbins have trifled most egregiously, reckoning fifty blemishes that render a lamb or kid, or any animal, improper to be sacrificed: five in the ear, three in the eyelid, eight in the eye, three in the nose, six in the mouth, etc., etc. A male of the first year - That is, any age in the first year between eight days and twelve months. From the sheep, or from the goats... read more