Before.. special various reading called Sevir (App-34) reads "For the sons of".
Ephraim and Benjamin and Manasseh. Note the Figure of speech Polysyndeton App-6), calling our attention to these three. They were descended from Rachel, and marched together in the rear (Numbers 2:18-22). As Judah, Issachar, and Zebulun marched in the van, the Ark (the symbol of God's presence) led them as. Shepherd (Psalms 78:13-16; Psalms 78:52-55.John 10:4; John 10:5).