Why is my NumberValue not showing on text?

script1 path: game.StarterGui.AgilityValue.AgilityValueChange

local agility = script.Parent.Value
local function onRunning(speed)
game.Players.LocalPlayer.Character:WaitForChild("Humanoid").Running:Connect(onRunning)
if speed >0 then
        timeStarted = time()
    else
        local agilitygain = (time()-timeStarted)
        agility = (agility+agilitygain)
        agility = math.floor(agility)
        script.Parent.Value = (agility)
        end
    end

ok, so this script successfully changes the value of AgilityValue. But, in the other script i have,i am facing an issue.

script2 path: game.StarterGui.ScreenGui.Menu.MenuGUI.StatFrame.Agility.AgilityValueScript

local agility = game:GetService("StarterGui").AgilityValue.Value
local agilityText = script.Parent.Text
game.StarterGui.AgilityValue.Changed:Connect(function()
    agilityText = ("Agility:")..agility
end)

Even though I am using the right path of agility, the agilityText remains as "Agility:" without showing the agility value next to it.

I would really appreciate it if someone helped me out, thanks :D