Moses then reminds them of the sin of the spies who had returned from the Land of Israel and spoke ill of the land, causing the people to doubt the success of their imminent entry. God’s response, of course, was to punish the people and delay the entry for an additional 38 years. Moses fears that if Reuben and Gad remain in the land east of the Jordan, the rest of the people will refuse to enter. After years of experience with the Children of Israel, Moses is quite aware that the littlest provocation can instill fear and lack of faith in the people.