Authority is specified to a certain degree.

Exodus 25:14

Example #1: Transporting the ark.

Exodus 25:14; Numbers 4:15; 7:6-9; I Chronicles 3:7-14; 15:2, 12-15

They did not seek God according to His ordinances.

Example #2: Strange fire

Example #3: Priesthood

II John 1:9

“Please go buy me a dog.”

Genesis 6:14 – “Make for yourself an ark of gopher wood.”

Singing

Matthew 26:30; Mark 14:26; Acts 16:25; Romans 15:9; I Corinthians 14:15; Colossians 3:16

Do we have authority to play instruments? No, God did not authorize it.

Work of local churches

II Corinthians 8:1-4; I Corinthians 14:26; Philippians 4:15

Provide for needy saints

Provide for worship and edification

Provide for preaching

Even when my choice is not explicitly stated. I’m okay as long as I’m still within the authority.

Where is the authority for song books?

Where is the authority for a church building?

I Corinthians 14:23, 26; Acts 20:7; Hebrews 10:25

A building is just a utility to allow us to assemble.