1 Corinthians 6:11
And some of you have practiced such things, but you were washed [i.e., from your sins. See Acts 22:16]; you were dedicated [i.e., set apart for God's service]; you were made right with God in the name [i.e., by the authority] of the Lord Jesus Christ, and by the Holy Spirit of our God.
1 Corinthians 10:21
You cannot drink [both] the cup of the Lord and the cup of evil spirits [i.e., and still be acceptable to God]. You cannot share in [both] the Lord's table and the table of evil spirits [and still be acceptable to God].
1 John 1:7
But, if we live in the light [of righteousness] just like God [constantly] lives in the light [of righteousness], we can truly share a relationship with one another and [can know that] the blood of Jesus, God's Son, continues to cleanse [our spirits] from all of our sins.