Numbers 2
16 Ref The number of all the armies of Reuben together came to a hundred and fifty-one thousand, four hundred and fifty. They go forward second.
17 Ref Then the Tent of meeting is to go forward, with the tents of the Levites, in the middle of the armies; in the same order as their tents are placed, they are to go forward, every man under his flag.
18 Ref On the west side will be the flag of the children of Ephraim, with Elishama, the son of Ammihud, as their chief.