John Calvin 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. He signifies that they had been most prejudiced observers of the works of God, since His power, so often experienced and so thoroughly understood, had not stirred them to confidence in Him.

For in the word דבר, dabar, which we have translated thing, he [Moses] includes all the proofs by which God had testified that in Him alone was everything necessary to ensure their complete salvation. This was, so to speak, real or practical doctrine, when God called them to trust Him by extending His hand.

Still, He [God] accuses them of unbelief regarding the promise. For while faith is not only prompt and ready in obedience, but also invigorates and gives life to the whole person, the cause of their inaction was that they paid no attention to God who had promised to bestow on them the land of Canaan, and did not rest upon His covenant.

In relation to this, he [Moses] also says that God marked out the places and stations where they should pitch their camp; for, unless it had been His design to guide them forward, this changing of places would have been unnecessary. It was, therefore, gross negligence not to connect these signs for stopping and proceeding to their proper purpose, since it was equivalent to despising God when He extended His hand to them.