Ephesians 4:4-6

Ephesians 4:4-6. There is one body, and one Spirit, even as ye are called in one hope of your calling; one Lord, one faith, one baptism, one God and Father of all, who is above all, and through all, and in you all.

If there were two lords, you might be divided into two parties; if there were two faiths, you might split up into two sections; if there were two baptisms, you might be right in having two denominations; if there were two fathers, there might be two families; if there were two indwelling spirits, there would be, and there must be, two sorts of people; but, in the true Church of Jesus Christ, there is "one God and Father of all, who is above all, and through all, and in you all."