'Harmonize' in the Bible

And as you saw the iron mixed with common clay, so they will combine with one another in the seed of men; but they will not merge [for such diverse things or ideologies cannot unite], even as iron does not mix with clay.

“Again I say to you, that if two believers on earth agree [that is, are of one mind, in harmony] about anything that they ask [within the will of God], it will be done for them by My Father in heaven.