Set the Levites apart for me in place of all the firstborn of Bnei-Yisrael, and, all the livestock of the Levites in place of the firstborn of the livestock of Bnei-Yisrael. I am Adonai.”
The first offspring of the womb from all flesh, whether human or animal, offered to Adonai, is yours. However, you are to redeem the firstborn of man and the firstborn of unclean animals.
because all the firstborn are Mine. In the day when I was striking down all the firstborn in the land of Egypt, I consecrated to Myself every firstborn in Israel—whether man or animal—as Mine. I am Adonai.”
“Take the Levites in place of all the firstborn of Bnei-Yisrael, and the livestock of the Levites in place of their livestock. The Levites will be Mine. I am Adonai.