'Church of God' in the Bible

Take heed to yourselves, and all the flock, over which the Holy Ghost has placed you shepherds, to shepherdise the church of God, which He bought with His own blood.

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.

Paul, the apostle of Jesus Christ through the will of God, and brother Timothy, to the church of God which is at Corinth, along with all the saints who are in all Achaia:

For you have heard of my life formerly in Judaism, that I was persecuting the church of God exceedingly, and destroying it:

but if any one does not know how to rule his own house, how will he take care of the church of God?