1 Corinthians 1: 1-2 Called & Cleansed: Your True Identity in Christ

1 Paul, called to be an apostle of Christ Jesus by the will of God, and our brother Sosthenes,

² To the church of God in Corinth, to those sanctified in Christ Jesus and called to be his holy people, together with all those everywhere who call on the name of our Lord Jesus Christ—their Lord and ours:

³ Grace and peace to you from God our Father and the Lord Jesus Christ.

https://www.biblegateway.com/passage/?search=1%20Corinthians%201&version=NIV