God who is the Creator of everything that is, can He be limited in anywhere. Who is the One that will be up to if God could be limited? It depends on how we know God. The Bible says that those who do know their God shall wax strong and do exploit. We know our God. He is not limited in anywhere. He is all knowing. He is all powerful. He is all present. God that we know is the Almighty God. There is nothing that this God cannot do. Because of our understanding and knowledge of our God, we have no fear whether there is anything that He not capable of.
I wonder when I hear some people argue that God has no wife therefore He has not gotten any wife. How we think of God that way? Is there anything that God cannot do? Have we not studied about creatures which the males give birth? Someone who created the one who give birth does he need someone to assist Him in putting to birth? Must he be a woman before He can give birth? The Bible asks us a question that the One who planted the ear, can that one hear? So, God is capable of doing anything.
Humans have limitations in everywhere. As creatures, we cannot run like the animals in the bush. We don't have ability to fly like birds. We cannot see like the eagles. So we are limited. We don't have the power to do many things but God has all the ability.