I don't know about you, but that pesky little verse 14 in the middle is massively challenging.
Do everything without grumbling or arguing.
If you ever doubt that this stuff is important from God's perspective, you only have to look to another New Testament passage like 1 Corinthians 10:10-12 to see how unimpressed He is with grumbling.
I'm not a theologian, but I suspect that the heart of this 'grumbling' issue is faith, or the lack of it. God has made it abundantly clear that without faith, it is impossible to please him (Hebrews 11:6).
When we bring our worship to God, it becomes a tangle expression of faith, even in the midst of doubt and difficulty, that we are trusting that God is sufficient to see us through anything.
"My grace is sufficient for you, for my power is made perfect in weakness." 2 Corinthians 12:9