When using a website as a source you need to include as much information in the footnote and bibliography as you have access to from the website.
If possible you should include: a title of description of the page; the author of the content; the owner or sponsor of the website; a URL; a publication or revision date. If no publication or revision date is available you should include the date you accessed the page.
"Title of webpage," author of content, owner or sponsor of site, publication/revised/access date, URL.
“Why Theological Study is for Everyone,” Jared C. Wilson, accessed January 6, 2016, http://www.christianity.com/theology/why-theological-study-is-for-everyone.html
"Title of webpage."
“Why Theological Study is for Everyone.”
Author of content or owner/sponsor of site. "Title of webpage." Publication/Last modified/Access date Month Date, Year. URL
Wilson, Jared C. “Why Theological Study is for Everyone.” Accessed January 6, 2016. http://www.christianity.com/theology/why-theological-study-is-for-everyone.html