Trying to make part's position same as another one, keeps producing errors, any help over here?

Just be reading the script you'll understand that I'm trying to get replace an old part with a new one and making it have the same position:

BladeEvent.OnServerEvent:Connect(function()
	local previousblade = BladesFolder:GetChildren()
	local BladeClone = Blade:Clone()
	BladesFolder:ClearAllChildren()
	BladeClone.Parent = BladesFolder
	BladeClone.CFrame = CFrame.new(0, 5, 0):toWorldSpace(previousblade)
end)

Sadly, it keeps telling me this error: ** bad argument #1 to 'toWorldSpace' (CFrame expected, got table)**

If you don't mind explaining me what have I done wrong so I can better understand the new code, and not make the same mistake again, thank you! G'day y'all!