It seems to me that the closer one is in their relationship with Christ, the more they reflect Him to the world around them.
This is not easily faked for any length of time - though it probably is from time to time.
The less a person values what Jesus values, the more their opinions, actions and values tend to reflect the enemy.
The more I get to know Messiah Jesus, the better idea I (believe I) have of His grace, mercy, love, and truth when it is reflected in the lives of others.
Those who don't love Jesus, don't love the things He loves. They will probably argue instead.