I needed to change text on my site, so yesterday I modified .php files in the /public_html directory using the web editor. The File Manager shows that the files were last modified 7/19/2015. When I open the files and view hte code, everything looks correct (the text reads as it should). However, when I open the website http://www.yellowspringsumc.com, the old text remains on the site.

For example, near the bottom of the index page...

OLD TEXT: (still visible)
Adult Bible Study
10:30 a.m. Sunday
Adults of all ages blend into the Adult Class on Sunday mornings. The theme this year is how to be a better steward of the earth based on scriptures and religious writings. The discussions are lively as the members work on various topics. The class is also interested in acting on some of the issues. So far it has birthed the Yellow Springs Winter Farmer's Market, recycled shopping bags, plans for possible church vegetable garden areas, and many ideas for being more "green" at home, finding local foods, and enjoying a sustainable life-style.

NEW TEXT: (should appear on the site but doesn't)
Adult Bible Study
10:30 a.m. Sunday, Sept-May
Adults of all ages blend into the Adult Class on Sunday mornings from September to May. The discussions are lively as the members work on various topics. The class has birthed the Yellow Springs Winter Farmer's Market, reusable shopping bags and plans for possible church vegetable garden areas.


-I have tried refreshing the page multiple times over the course of two days
-I have tried clearing my browser cache.
-I use a Mac. I asked another person who uses a PC to view the site, and she also saw the old version/text.
-I viewed the site from my iPhone, and the old version came up.
-I downloaded the updated index.php file, then uploaded it and overwrote the previous file.

None of this has worked. I can't figure out what the problem is or how to fix it.

What am I doing wrong?