How to "rebind" a default character function?

Help and Feedback Scripting Support
1

I unbinded the jump function to disable jumping, now I need to “rebind” it back. Seems like you can’t rebind it back if you don’t have a function for it to do. How would I rebind it to the default jumping function? I tried to just set humanoid.Jump equal to true, but it still doesn’t jump.

SCRIPT:

local function jump(actionName, inputState, inputObj) -- the function
	if inputState == Enum.UserInputState.Begin then
		Humanoid.Jump = true
	end
end

Combat.OnClientEvent:Connect(function()
	prevTime = currTime
	local attackanim = Humanoid:LoadAnimation(anims[count])
	attackanim:Play()
	wait(cd)
	Attacking.Value = false
	game:GetService("ContextActionService"):BindAction("jumpAction", jump, false, Enum.KeyCode.Space) -- "rebinding" the function