'Church of God' in the Bible

Take heed therefore to yourselves and to the whole flock, over which the Holy Ghost hath made you overseers, to feed the church of God, which he hath purchased with his own blood.

and Sosthenes a brother, To the church of God, which is in Corinth, to them that are sanctified through Christ Jesus, called and holy, with all that in every place call upon the name of our Lord Jesus Christ, both theirs and ours:

Give no offence either to the Jews, or to the Gentiles, or to the church of God:

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

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 an apostle of Jesus Christ, by the will of God, and Timotheus our brother, to the church of God that is in Corinth, with all the saints that are in all Achaia:

For ye have heard of my behaviour in time past in the Jewish religion, that above measure I persecuted the church of God, and wasted it.

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