Matthew Poole and continuators on Romans 15:6

6. That you may with one mind and one mouth glorifie God , even the Father of our Lord Jesus Christ .

q. d. I farther pray, that you may not only be like minded one towards another, But that you may with one mouth glorifie God; that whether you be Gentiles or Iews, strong or weak in the Faith, you may agree and be unanimous in his Worship and Service; that not only with one mind, but with one mouth; or as if you had all but one mouth, you may pray unto God and praise him; that is, one way of glorifying God, Psal. 50.23. and it seems to be chiefly intended in this place, See Act. 4.23. what accord and unanimity there was among the Primitive Christians.

An usual Paraphrasis of God in the New Testament. vid. 2 Cor. 1.3. and 11.31. Eph. 1.3. Col. 1.3. 1 Pet. 1.3. God is the Father of Christ, first as he is the Son of God, so he begat him by an eternal and ineffable Generation, Iohn 3.16. 1 Iohn 4.9. Secondly, As he is man, so he created him, Luk. 1.35. Thirdly, As he is Mediator, so he appointed him to, and qualified him for that Office, Psal. 40.8. Iohn 20.17. This compellation of God includes all our comfort and happiness; for he is our Father, because he is the Father of Jesus Christ. It is added here by way of Limitation, to distinguish the true God from the false Gods of the Earth, and by way of explanation, to shew how God will be Glorified and Worshiped under the Gospel, viz. As the God and Father of our Lord Iesus Christ.