Romans 2:4

Or do you presume upon the riches of his kindness and forbearance and patience? Do you not know that God's kindness is meant to lead you to repentance?

Romans 11:20

That is true. They were broken off because of their unbelief, but you stand fast only by faith. So do not be proud, but stand in awe.

Hebrews 4:1

Therefore, while the promise of entering his rest remains, let us fear lest any one of you be judged to have come short of it.

1 Peter 1:17

If you address as Father the One who impartially judges according to each one's work, conduct yourselves in fear during the time of your exile on earth.

Treasury of Scripture Knowledge

Summary

Happy is the man that feareth alway: but he that hardeneth his heart shall fall into mischief.

General references

Bible References

Happy

Romans 11:20
That is true. They were broken off because of their unbelief, but you stand fast only by faith. So do not be proud, but stand in awe.
Hebrews 4:1
Therefore, while the promise of entering his rest remains, let us fear lest any one of you be judged to have come short of it.
1 Peter 1:17
If you address as Father the One who impartially judges according to each one's work, conduct yourselves in fear during the time of your exile on earth.

General references

1 Corinthians 10:12
Therefore let any one who thinks that he stands take heed lest he fall.