Exodus 23:14

Three times thou shalt keep a feast unto me in the year— It is very evident, from the appointment of these three solemn festivals, when all the males were to appear before the Lord in that place where he peculiarly manifested himself to them, that the Jewish religion was never designed to be an universal religion; which this single appointment rendered impossible. And, no doubt, the command was given no less with this view, than to strengthen the national union and harmony, by this frequent assemblage of the people together. This law, it is most probable, was not to take place till they were in possession of the land of Canaan. See ch. Exodus 34:23.