The children of Reuben, and the children of Gad, and the half-tribe of Manasseh, passed over armed before the children of Israel, as Moses spoke to them:
Some scholars have squirmed and quibbled over the setting up of two memorials, as mentioned here, declaiming on the stupidity of setting up a memorial where nobody would see it at the bottom of the Jordan, and other choice bits of human cavil.  Well, we thank God for the discernment of one like Pink, who has this: