How to grab specific value in an Array?

Hello, Current working on an inventory UI

I am not sure on how to grab the specific value, to equip. Aka, a weapon.

Currently, I can equip any tool in my backpack cause it has the same but how would I grab the key and value of a specific object in my table?

local Items = {}

local function UpdateItems()
    UI.Backpack:ClearAllChildren()
    for _,ItemObj in pairs(Player.Backpack:GetChildren()) do
        if GameItems:FindFirstChild(ItemObj.Name) then
            table.insert(Items, ItemObj)
        end
    end
end

Would it be just be Items[I]?