I would ignore the CS degree requirement. In my experience there are plenty of shops that will happily look at someone with no degree as long as it's supplemented with some other way of showing you have relevant experience.
If you want to look at a career change I would say you need to do the following:
1. Start learning the current state of the art. You might be surprised how much of your previous experience is still relevant.
2. Build some things that are a little more ambitious than maintaining a blog or home automation. Feature those things in your resume. If you can show the code you wrote when building it on Github/Gitlab/Bitbucket or something then that's a great way to provide a substitute for academic credentials.
many job postings list a CS degree as a requirement
Realistically, certain types of programming positions probably do require some kind of CS degree, but as somebody who pathologically learns I haven't found my lack of degree to be an issue in the last 25 years of my career.
Should you go to university / code bootcamp / learn on your own? I would evaluate how you enjoy learning. If you are a cover-to-cover learner, you might consider going back to school. If you enjoy a bit if instruction and then you'd like to jump in, consider 1-2 bootcamps (you'll probably learn different things from each). If you're a bit of a self-starter, go to a bookstore (or Youtube) and focus on getting the basics of a language down (like Java, Python or C#) -- and see where you want to go from there.
Your Javascript / PHP / MySQL skills probably haven't stagnated as much as you think.
You've already got the right hobbies to make this interesting and easier for you -- you got this.
Disclaimer, employee / hiring manager at Twilio. We have a path for non traditional candidates:
https://www.twilio.com/company/diversity/hatch
I just hired (well, offered; still waiting to hear back) someone who went through a boot camp and has a background in theater.
Search for church content management system companies, etc and apply for jobs on their dev teams. You would have valuable product insights.
Normally I would recommend learning how to program and then trying to get a job that is related to your field. Both of those don’t apply to you. You know how to program but your knowledge is not up to date and your field of study makes it hard for you to find a programming job where knowledge of theology would be a benefit. I don’t know of any type of programming job where you can leverage your subject expertise in theology. Maybe you have some other expertise you gained by working that can be leveraged?
Anyway. You still can look into the jobs available to you locally and find out what technologies are being used and concentrate your study on those fields. Also see what meetups you have going on and participate.
Other then that I think with your knowledge you might be better off going for a project manager position in tech.