'Church of God' in the Bible

Take heed therefore unto yourselves, and to all the flock, over which the Holy Spirit has made you overseers, to feed the church of God, which he has purchased with his own blood.

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

Give none offense, neither to the Jews, nor to the Gentiles, nor to the church of God:

What? have you not houses to eat and to drink in? or despise you the church of God, and shame them that have not? What shall I say to you? shall I praise you in this? I praise you not.

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

Paul, an apostle of Jesus Christ by the will of God, and Timothy our brother, unto the church of God which is at Corinth, with all the saints who are in all Achaia:

For you have heard of my manner of life in time past in the Jews' religion, how that beyond measure I persecuted the church of God, and wasted it:

(For if a man knows not how to rule his own house, how shall he take care of the church of God?)