'Church of God' in the Bible

to the church of God which is in Corinth, to the sanctified in Christ Jesus, called saints, with all that in every place call on the name of Jesus Christ our Lord, both theirs and ours:

Give no occasion for stumbling, either to the Jews, or to the Greeks, or to the church of God;

What, have you not houses in which to eat and drink? or do you despise the church of God, and put those to shame who have nothing to eat? What shall I say to you? Shall I praise you in this? I praise you not.

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