Yeah, getting to the roots of Christianity causes some cognitive dissonance.
"Do not go among the Gentiles or enter any town of the Samaritans. 6Go rather to the lost sheep of Israel"
and
"Do not suppose that I have come to bring peace to the earth. I did not come to bring peace, but a sword. 35For I have come to turn
“ ‘a man against his father,
a daughter against her mother,
a daughter-in-law against her mother-in-law—
36a man’s enemies will be the members of his own household"
Most Christians don't actually read the books.