Those that were numbered of them, [even] of the tribe of Reuben, [were] forty and six thousand and five hundred. 46,500 men. (See Gill on Numbers 1:20).
19
Moses did exactly what the Lord had commanded and listed the people while they were in the Desert of Sinai.
20
The tribe of Reuben, the first son born to Israel, was counted; all the men twenty years old or older who were able to serve in the army were listed by name with their families and family groups.
22
The tribe of Simeon was counted; all the men twenty years old or older who were able to serve in the army were listed by name with their families and family groups.