There are a lot of us out there. We like things a certain way. It’s not so much that we are selfish and must have it our way, it’s more so that we are more comfortable when things go our way. Life is more predictable. Control freaks don’t like surprises.
On the other hand, control freaks really like performance-based systems. Do something and get a predictable result. One can know how they will be judged, so there are no surprises. Performance-based systems like religious laws and customs because they bring, well, control.
The problem, though, is that we are not in control of the big matters of life, things like salvation, election, destiny, and calling. Nor were the Roman Christians. This was not their church, it was Christ’s. They were not the ones who call people out of darkness, God is. They were not the gatekeepers of the Kingdom, Jesus is.
Who can stand against his purpose? Are you, a mere human being, going to answer God back? Surely the clay won’t say to the potter, “Why did you make me like this?” Doesn’t the potter have authority over the clay? (9:19b-21a)
So the Potter has chosen to include Gentiles with their different way of life in this previously homogeneously Jewish Church. That is God’s right. It is up to us to accept and adapt.
We today should probably ask ourselves who the Gentiles of our world are. Who is God bringing into our churches or at least into relationship with Him even though they don’t fit our mold? Are we trying to tell the Potter He can’t do things like that?