Harmony

Let's talk harmony.

According to Cambridge Dictionary, the definition of harmony is a pleasant musical sound made by different notes being played or sung at the same time. Another way to define harmony: different tones that can make a pleasant sound at the same time.

What about it? You can say, I don't play music so why should I care about harmony?

As human beings, we tend to listen to and process things (statements, beliefs, actions, or whatsoever) that conform our own. We don't like anything that confront our culture. As a result, we are most likely to block our mind from external sources that might actually help us grow. Difference / change doesn't always result in bad for us. It might actually be like harmony, where it could make a pleasant sound.
Gal 3:28 says "There is neither Jew nor Greek, slave nor free, male nor female, for you are all one in Christ Jesus."

But again, the condition when accepting differences is when we are all one in Jesus Christ. We have no association with the "world". 2 Corinthians 6:14 says "Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?". We don't accept differences if it contradicts the Word of God.