“That ye may with one mind and one mouth glorifie God, euen the Father of our Lord Iesus Christ.”
1611 King James Version (KJV)
15:6 That ye - Both Jews and gentiles, believing with one mind, and confessing with one mouth.
Ro 15:6 That ye may with one mind, etc. That being in full accord you may with one voice ("mouth") utter the praises of God.