On the first day of the first month,.... Which was the month Nisan, as the Targum of Jonathan expresses it; which was the month the children of Israel came out of Egypt, out of which they had now been a whole year, excepting fourteen days:
shalt thou set up the tabernacle of the tent of the congregation; the tabernacle, which had a tent or covering over it, to which the people were gathered at times for religious service.