Ellicott's Commentary for English Readers - Exodus 12:12
(12) For I will pass through.—Rather, go through, since the word used is entirely unconnected with pesahh.Against all the gods of Egypt I will execute judgment.—The translation “gods” is far preferable to that of “princes,” given in the margin. The death of all the firstborn beasts would have been felt by the Egyptians as a heavy judgment upon their gods. Some of their sacred animals were regarded as actual incarnations of deity; and if any of these perished, as is likely, the threat would have... read more
Ellicott's Commentary for English Readers - Exodus 12:11
(11) Thus shall ye eat it.—The injunctions which follow are not repeated in any later part of the Law, and were not generally regarded as binding at any Passover after the first. They all had reference to the impending departure of the Israelites, who were to eat the Passover prepared as for a journey. The long robe (beged), usually allowed to flow loosely around the person, was to be gathered together, and fastened about the loins with a girdle; sandals, not commonly worn inside the house,... read more