The Danger of Unbelief

Hebrews 3:19

Showing verse 19 with surrounding context.

For who were the ones who heard and rebelled? Were they not all those Moses led out of Egypt?

And with whom was God angry for forty years? Was it not with those who sinned, whose bodies fell in the wilderness?

And to whom did He swear that they would never enter His rest? Was it not to those who disobeyed?

So we see that it was because of their unbelief that they were unable to enter.