TextButton's Text isn't modifiable by script?

What I am trying to do is to make a class selection GUI for a game that has the scripts pull information of different value types rather than having to edit multiple scripts for convenience.  So I have my GUI with a Frame holding all this information for one class type at the moment. With the current task of trying to get a TextButton to change it's name based on a StringValue also stored within the Frame.

textBody = script.Parent.Text -- referencing a TextButton's content

function getName()
    local findName = script.Parent.Parent.Title.Value -- a class type of StringValue within the overall Frame
    return findName 
end

print("getName() is "..getName()) -- returns name perfectly fine in the output window
textBody = getName()

In the end I am able to retrieve the Value of the StringValue, however the TexButton's Text does not change. Is there a better method to this or is this just not possible to do in Roblox?