Two things which strike me that God can do but I don’t know for sure are:
He can forget our sins, I mean really forget them.
He doesn’t just predict the future, he actually makes it happen.
Like I said, I can’t be dogmatic about either one but I get those impressions.
God does not predict the future or make it happen. To God there is no future or past. God is outside of time. When He says that something will happen it is because it has.