Luke 7:44-49

"And turning to the woman, he said unto Simon, Seest thou this woman? I entered into thy house, thou gavest me no water for my feet: but she hath wetted my feet with her tears, and wiped them with her hair. Thou gavest me no kiss: but she, since the time I came in, hast not ceased to kiss my feet. My head with oil thou didst not anoint: but she hath anointed my feet with ointment. Wherefore I say unto thee, her sins, which are many, are forgiven; for she loved much: but to whom little is forgiven, (the same) loveth little. And he said unto her, Thy sins are forgiven. And they that sat at meat with him began to say within themselves, Who is this that even forgiveth sins? (ASV)

These verses tell of a visit by Jesus to the house of Simon. He is rude to Jesus, not giving him the traditional courtesies. But the woman attended to Jesus with great love and had her sins forgiven because of her love and caring.

But then Luke 7:50 was appended to the story:

"And he said unto the woman, Thy faith hath saved thee; go in peace."

Many liberal theologians suspect that this verse is an afterthought, added at a later date after the original gospel had been written. The anonymous author's motivation would have been  to bring the story into line with the developing Christian theology which emphasized faith over works. (ASV)

2 Thessalonians. 1:8-9:

"He will punish those who do not know God and do not obey the gospel of our Lord Jesus. They will be punished with everlasting destruction and shut out from the presence of the Lord and from the majesty of his power." (NIV)

Conservatives generally believe that St. Paul wrote this book. Many religious liberals attribute the book to an unknown author, who wrote it many decades after Paul's death.