John Wesley on Numbers 20:1

Then - To wit, after many stations and long journeys here omitted, but particularly described, Num 33:1 - 49. Zin - A place near the land of Edom, distinct and distant from that Sin, Exo 16:1. The first month - Of the fortieth year, as is evident, because the next station to this was in mount Hor, where Aaron died, who died in the fifth month of the fortieth year, Num 33:38. Moses doth not give us an exact journal of all occurrences in the wilderness, but only of those which were most remarkable, and especially of those which happened in the first and second, and in the fortieth year. Miriam died - Four months before Aaron, and but a few more before Moses.