The first thing to do is to get a domain name (this is a name you would give your website, for example, bibleteaching.com) and then you would register it at one of those domain registries like godaddy.com. You can register for a year or two years, which means after that time period, it expires if you don't renew the registration. Next you have to get your website hosted at a web hosting company. There are so many of them on the Internet, but you need one that is reliable. Then you put content about your bible teaching on your webpage. You can find a good web designer to get the content up for you. Your next step is to market your website so people can know how to find you. Write articles, participate in Christian forums and blogs to get the word out.

If you have a website already, post the URL and people will see it here and check it out.  If it is good, they may link to it from their page.  If you request that people link to it, they may do it faster.