1 Corinthians 5:8-10

Revised Standard Version Catholic Edition

⁸ Let us, therefore, celebrate the festival, not with the old leaven, the leaven of malice and evil, but with the unleavened bread of sincerity and truth.

Sexual Immorality Must Be Judged

⁹ I wrote to you in my letter not to associate with immoral men;^{[a] 10} not at all meaning the immoral^[b] of this world, or the greedy and robbers, or idolaters, since then you would need to go out of the world.