2 Timothy 1 & 2

Here is a trustworthy saying:
If we died with him, we will also live with him;
if we endure, we will also reign with him.
If we disown him, he will also disown us,
if we are faithless, he will remain faithful,
for he cannot disown himself. (2 Timothy 2:11-13)

These few verses sum up our relationship with Jesus. If we give up our life, he will give us eternal life. If we will put up with difficulty now, he will make us kings.
If we deny him, he will deny us, but if we mess up he will remain faithful because he cannot go against his nature. That is the most one-sided agreement in the history of the world. He pledges to be perfect in his relationship to us, while asking us only to be willing to serve him.

Verse 15 makes a very reasonable request in light of what Jesus has committed to us. "Do your best to present yourself to God as one approved, a workman who does not need to be ashamed and who correctly handles the word of truth."

When we understand this relationship, differences of preference or interpretation really aren't worth getting into a tizzy over. Stay away from the big stuff and ask for grace to help you overcome the other stuff. Augustine said it very well: In essentials, unity; in non-essentials, liberty; in all things, charity.