Why does the while true do loop not work and change the text?

So i was making a loop in a script that takes the value from a number value and puts it in a gui.

local function SetMoney()
    MoneyText.Text = Money.. " $"
end

while true do
    SetMoney()
    wait()
end

The "Money" variable is the value of the number value while the "MoneyText" variable is the textbox in the gui. When i change the value of Money, the textbox does not change. Why?