2 Thessalonians 1:8

in the fire of flame, dispensing vengeance to those who know not God, and to those who do not obey the gospel of our Lord Jesus:

2 Timothy 2:24

But it does not behoove the servant of the Lord to strive, but to be gentle toward all, competent to teach, enduring evil,

Hebrews 3:5-6

And Moses was indeed faithful in all his house as a servant, unto the testimony of those things which shall be spoken;

1 Peter 2:8

who stumble over the word, disbelieving: unto which they indeed were appointed.

1 Peter 4:17

Because it is time that judgment should begin from the house of God: and if it is first from us, what shall be the end of those who obey not the gospel of God?

Treasury of Scripture Knowledge

Summary

Because they obeyed not the voice of the LORD their God, but transgressed his covenant, and all that Moses the servant of the LORD commanded, and would not hear them, nor do them.

Bible References

They obeyed not

2 Thessalonians 1:8
in the fire of flame, dispensing vengeance to those who know not God, and to those who do not obey the gospel of our Lord Jesus:
1 Peter 2:8
who stumble over the word, disbelieving: unto which they indeed were appointed.
1 Peter 4:17
Because it is time that judgment should begin from the house of God: and if it is first from us, what shall be the end of those who obey not the gospel of God?

Moses

2 Timothy 2:24
But it does not behoove the servant of the Lord to strive, but to be gentle toward all, competent to teach, enduring evil,
Hebrews 3:5
And Moses was indeed faithful in all his house as a servant, unto the testimony of those things which shall be spoken;