1 Corinthians 5:4-7

in the name of our Lord Jesus, ye being gathered together, and my spirit, with the power of our Lord Jesus, to deliver such a one unto Satan for the destruction of the flesh, that the spirit may be saved in the day of the Lord Jesus. Your glorying is not good. Know ye not that a little leaven leaveneth the whole lump? Purge out the old leaven, that ye may be a new lump, even as ye are unleavened. For our passover also hath been sacrificed, even Christ