John Gill Commentary Deuteronomy 1:32

"Yet in this thing ye did not believe Jehovah your God," — Deuteronomy 1:32 (ASV)

Yet in this thing you did not believe the Lord your God .
] That they might go up and possess the land at once, and that he would fight for them, and subdue their enemies under them; or notwithstanding the favours bestowed upon them, and because of them, they did not believe in the Lord their God, and which was a great aggravation of their unbelief, and was the cause of their not entering into the good land, (Hebrews 3:19) .