2 Corinthians 6:11-15

My friends at Corinth, our hearts are wide open to you and we speak freely, holding nothing back from you. If there is a block in our relationship, it is not with us, for we carry you in our hearts with great love, yet you still withhold your affections from us. So I speak to you as our children. Make room in your hearts for us as we have done for you. Don’t continue to team up with unbelievers in mismatched alliances, for what partnership is there between righteousness and rebellion? Who could mingle light with darkness? What harmony can there be between Christ and Satan? Or what does a believer have in common with an unbeliever?