“Can two walk together, unless they are agreed?”
Can two be unified if one is not willing to submit and take into account the other person. No, it will just be a whole lot of madness. Its selfishness to not take into account other people and their feelings and maybe consider that the way they do things can be a more efficient way. There are so many analogies that can go with this.
Lets look at softball. This is not a one man sport. There are 9 other players on the field and if one person is not in unity with the rest, the whole team suffers.
This makes me think of friendship. I have over years have dealt with many difficult situations with friends. The Lord at one point took not forever but for a season had most of my friends out of my life to teach me to rely on Him. His is the only friend I need like it says in John 15:14-15 “You are My friends if you do whatever I command you. No longer do I call you servants, for a servant does not know what his master is doing; but I have called you friends, for all things that I heard from My father I have made know to you.” There was no Him in those relationships and I thank Him for not allowing me to continue to go down the path I was with them. They were not on the same page as me with there walks not to say I had a better relationship but my priorities were different. They are on my heart all the time and I know that at some point He is going to grab their hearts and bring them back to Him all I can hope is that my life will be a testimony to them on what it looks like to really surrender it to Him and allow Him to lead. To have Him number one in your life!
Marriage. Though I am not not married I have been blessed to see marriages that have Christ in the center. They may not be perfect but the marriage and the people of the marriage have one purpose. That is serve Christ and to be an example of His love, kindness, and mercy.
So looking at three of the these examples the three main things I see is Christ first, others second, and themselves last. Unity is dying to self and having Christ be the center. Psalm 133:1 “Behold, how good and how pleasant it is for brethren to dwell together in unity!”