Bible Verses About Repentance: Danger of neglecting

Then began he to upbraid the cities wherein most of his mighty works were done, because they repented not.

Woe unto thee, Chorazin! woe unto thee, Bethsaida! for if the mighty works had been done in Tyre and Sidon which were done in you, they would have repented long ago in sackcloth and ashes.

But I say unto you, it shall be more tolerable for Tyre and Sidon in the day of judgment, than for you.

And thou, Capernaum, shalt thou be exalted unto heaven? thou shalt go down unto Hades: for if the mighty works had been done in Sodom which were done in thee, it would have remained until this day.

But I say unto you that it shall be more tolerable for the land of Sodom in the day of judgment, than for thee.

I tell you, Nay: but, except ye repent, ye shall all in like manner perish.

I tell you, Nay: but, except ye repent, ye shall all likewise perish.

Behold, I cast her into a bed, and them that commit adultery with her into great tribulation, except they repent of her works.