'Church of God' in the Bible

to the church of God being in Corinth, to the sanctified in Christ Jesus, to the called saints, along with all who call upon the name of our Lord Jesus Christ in every place, theirs and ours:

Be ye without offence, both to Jews, and to Greeks, and to the church of God:

For have you not houses in which to eat and to drink? or do you cast contempt on the church of God, and shame those not having? What do I say to you? Shall I praise you in this? I do not praise you.

For I am the least of the apostles, who am not worthy to be called an apostle, because I persecuted the church of God.