1 Corinthians 1:23; 1 Corinthians 5:1; 1 Corinthians 10:20; 1 Corinthians 12:2

1 Corinthians 1:23

23 but we preach Christ crucified, to Jews a stumbling block and to Gentiles foolishness,

1 Corinthians 5:1

1 It is actually reported that there is immorality among you, and immorality of such a kind as does not exist even among the Gentiles, that someone has his father's wife.

1 Corinthians 10:20

20 No, but I say that the things which the Gentiles sacrifice, they sacrifice to demons and not to God; and I do not want you to become sharers in demons.

1 Corinthians 12:2

2 You know that when you were pagans, you were led astray to the mute idols, however you were led.