'Harmonious' in the Bible

make my joy complete by being of the same mind, having the same love [toward one another], knit together in spirit, intent on one purpose [and living a life that reflects your faith and spreads the gospel—the good news regarding salvation through faith in Christ].

And HE IS before all things and in and through Him the universe is a harmonious whole.

To sum up, all of you be harmonious, sympathetic, brotherly, kindhearted, and humble in spirit;