Keep it simple
Use tried and tested navigation layouts, sensible colours with good contrast, and clear fonts. Avoid fancy technological tricks.
Make sure your key pages are quick to load: don't use enormous images. Remember that in remote rural areas (and some less reomte ones), there may not be 'broadband' access to the Internet, either fixed or mobile.
Even if you're a professional web developer, or you're going to get expert help from someone else at your church, consider the merits of using a Content Management System. Using one will reduce the number of possible things people can get wrong, and the number of things you have to concern yourself with from day to day. You might do everything right, but what about other people who might also be maintaining sections of the site?
Try to use standard technologies that work across all types of computer, with all common web browsers. Don't do things that only work for Windows computers with lots of Microsoft software.
Use the text mark-up facilities available to you to give your pages a proper structure. (There is more about this under Accessibility.)
Last updated: April 2017