The concluding words are better expressed thus: Mine shall they be, Mine, the Lord’s. On the subject of the firstborn, see the notes at ([…

On the day that I smote all the firstborn. —The command given to Moses regarding the sanctification or separation of the firstborn, of bot…

Because all the firstborn [are] mine
Not merely in a general way, as all creatures are his, but in a special manner …

There was much work belonging to the priests' office, and there were now only Aaron and his two sons to do it; God appoints the Levites to attend t…