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Rom. 16:5

5 Likewise greet the church that is in their house. Greet my beloved Epaenetus, who is the firstfruits of Achaia to Christ.

1 Cor. 1:2

2 To the church of God which is at Corinth, to those who are sanctified in Christ Jesus, called to be saints, with all who in every place call on the name of Jesus Christ our Lord, both theirs and ours: