For this reason you stayed in Kadesh for a long time—a very long time.
Moses here makes a large rehearsal of the fatal turn which was given to their affairs by their own sins, and God's wrath, when, from the very borders of Canaan, the honour of conquering it, and the pleasure of possessing it, the whole generation was hurried back into the wilderness, and their carcases fell there. It was a memorable story; we read it Num.
Commenting on Deuteronomy 1:19-46
So ye abode in Kadesh many days,.... Yea, some years, as some think: according to the days that ye abode there; that is, according to Jarchi, as they did in the rest of the journeys or stations; so that as they were thirty eight years in all at several places, they were nineteen years in Kadesh; the same is affirmed in the Jewish chronology (w).
So ye abode at Kadesh many days--That place had been the site of their encampment during the absence of the spies, which lasted forty days, and it is supposed from this verse that they prolonged their stay there after their defeat for a similar period. Next: Deuteronomy Chapter 2