John Gill Commentary Numbers 1:52

"And the children of Israel shall pitch their tents, every man by his own camp, and every man by his own standard, according to their hosts." — Numbers 1:52 (ASV)

And the children of Israel shall pitch their tents, every man
by his own camp
There were four, unless every tribe was a camp, and so then there were twelve camps, besides the camp of the Levites: the Targum of Jonathan is, ``by the house of his troop,'' the regiment to which he belonged, every tribe or camp having various troops or regiments in it:

and every man by his own standard throughout their hosts ;
there were four standards, and three tribes to each standard, which were placed east, west, north, and south of the tabernacle, as is at large described in the following chapter.