The main business of the church is to be a place for the Presence of God and to manifest Him here on the earth. To advance His Kingdom, to do His will here on the earth as it is in heaven. The Church is for God, and if He is lifted up He will draw all men unto Himself. Unless the Father draws them, they will not come to Him. It is not how many people we have in church, it is about the measure of the stature of Christ we have to influence the city and impact the nations. The gospel is 'In your seed all the families of the earth shall be blessed, all the nations of the earth shall be blessed'. That's the gospel that God preached to Abraham.