"You cannot have God as your Father unless you have the church as your mother." ~ Cyprian
4 But when the fullness of time had come, God sent forth his Son, born of woman, born under the law, 5 to redeem those who were under the law, so that we might receive adoption as sons. 6 And because you are sons, God has sent the Spirit of his Son into our hearts, crying, "Abba! Father!" 7 So you are no longer a slave, but a son, and if a son, then an heir through God. (Galatians 4:4-7. ESV.)
1 Corinthians 5:8 "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."
12 For what have I to do with judging outsiders? Is it not those inside the church whom you are to judge? 13 God judges those outside. (1 Corinthians 5:12-13. ESV.)
As followers of Christ we need our family to help hold us accountable for our sins. We are called to bear one another's burdens.