John Calvin Commentary Hebrews 3:10

"Wherefore I was displeased with this generation, And said, They do always err in their heart: But they did not know my ways;" — Hebrews 3:10 (ASV)

And I said, etc. This was God’s sentence, by which he declared that they were lacking a sound mind, and he adds the reason, For they have not known my ways.

In short, he regarded them as past hope, for they were without sense and reason. And here he assumed the character of man, who eventually after long trials declares that he has discovered obstinate madness, for he says that they always went astray, and no hope of repentance appeared.