en_tn_condensed/num/03/12.md

Look

"Listen" or "Pay attention to what I am about to tell you"

I have taken the Levites

"I have chosen the Levites"

each firstborn, who opens the womb

The phrase "opens the womb" is a way of talking about the first baby being born. Alternate translation: "every firstborn son, the first to come from the womb"