What evidence is there in the Bible that god’s nature/essence is indivisible?

I asked why three persons sharing the same essence equals one being with god while with everything else it equals three beings, and was told that although normally three persons equals three beings because everything’s nature/essence is divisible, for god it’s one being despite there being three persons because god’s nature/essence is indivisible. So in light of that, what evidence is there in the Bible that god’s nature/essence is indivisible?