Yes there is greater sin as mentioned in the Bible:
(New Testament | 1 John 5:16)
16 If any man see his brother sin
a sin which is not unto death, he shall ask, and he shall give him life for them that sin not unto death.
There is a sin unto death: I do not say that he shall pray for it.
(New Testament | Matthew 12:31 - 32)
31 ¶ Wherefore I say unto you, All manner of sin and blasphemy shall be forgiven unto men: but the blasphemy against the Holy Ghost
shall not be forgiven unto men.
32 And whosoever speaketh a word against the Son of man, it shall be forgiven him: but whosoever speaketh against the Holy Ghost, it shall not be forgiven him, neither in this world, neither in the world to come.
(New Testament | John 19:11)
11 Jesus answered, Thou couldest have no power at all against me, except it were given thee from above: therefore he that delivered me unto thee
hath the greater sin.
(New Testament | Matthew 11:21 - 24)
21 Woe unto thee, Chorazin! woe unto thee, Bethsaida! for if the mighty works, which were done in you, had been done in Tyre and Sidon, they would have repented long ago in sackcloth and ashes.
22 But I say unto you,
It shall be more tolerable for Tyre and Sidon at the day of judgment, than for you.
23 And thou, Capernaum, which art exalted unto heaven, shalt be brought down to hell: for if the mighty works, which have been done in thee, had been done in Sodom, it would have remained until this day.
24 But I say unto you, That
it shall be more tolerable for the land of Sodom in the day of judgment, than for thee.
(New Testament | 2 Peter 2:21 - 22)
21 For
it had been better for them not to have known the way of righteousness, than, after they have known it, to turn from the holy commandment delivered unto them.
22 But it is happened unto them according to the true proverb, The dog is turned to his own vomit again; and the sow that was washed to her wallowing in the mire.
(New Testament | Luke 12:47 - 48)
47 And that servant, which knew his lord's will, and prepared not himself, neither did according to his will, shall be beaten with
many stripes.
48 But he that knew not, and did commit things worthy of stripes, shall be beaten with
few stripes. For unto whomsoever much is given, of him shall be much required: and to whom men have committed much, of him they will ask the more.
"As you can see,
Jesus taught that there are degrees of sin. But all sin separates us from God "
From:
Are there different levels or degrees of sin? | CARM.org