https://www.bible.com/72/rom.15.5.hcsb
Now may the God who gives endurance and encouragement allow you to live in harmony with one another, according to the command of Christ Jesus, so that you may glorify the God and Father of our Lord Jesus Christ with a united mind and voice.
(Rom 15:5-6)
Last Saturday, my daughter was taking part in a band combined with all the regional bands from their middle schools. I didn’t expect what I heard. Over the course of one day, my daughter has managed to learn how to play three new songs, songs she didn’t even know to start, and then learn how to play them with complete strangers. By the time of the concert, they had managed to learn how to play together and bring off a most impressive concert, despite their youth and inexperience. I credit this in part to the instructors who worked with them, but also the power of harmony, when everyone is working together to a common goal. In this case, everyone was working on the same music, if not the same page.
I think we Christians could take a page out of this book. We are all trying to save the world according to our own silos. Each of us think we have the right way and correct understanding of how the Bible works and how Jesus saves. The fact that there are hundreds if not thousands of churches (and yes, each have their own thing), would seem to give lie to that fact. Either only one of us is completely right, some of us are partially right or we’re all completely wrong.
Truthfully, I think we have much more in common than we think, and we probably ought to cooperate more than we do. If we all claim to be Christians, then surely there must be some real Christians among us. I believe each one must be firmly convinced in his own mind what he believes. But I also believe we tend to nitpick over non-essentials, like whether or not we use musical instruments in worship.
I believe the essentials are these: Jesus Christ is the Living Son of God, born of a virgin, crucified on a cross, risen from the dead and alive in Heaven at God’s right hand, but just as near to us. If this isn’t at the core of your faith, you are not a Christian. The resurrection alone as Paul said is the most important fact of our faith, and must be upheld.
The second is like the first: The Bible as written in its original languages (Hebrew, Aramaic, and Greek) is the final authority of God on this earth. It was written by the Holy Spirit through the hands of about 40 men (and maybe women) to its minimum extent of 66 books, the 39 books of the Old Testament and the 27 books of the New. All of the Church recognizes these books. It is true in all that it attests to and affirms. It is our final authority of faith, and cannot be interpreted to the opposite of what it clearly says. It was written to be understood, and written so that even common men (and women) could understand it. Anyone who denies the written Word of God or its authority is not a Christian because they deny the surest source of authority they have.
Beyond these two, we can talk about others, but I believe you need these two to start having a conversation. God bless you today!