A man walking through a wall is a miracle. A man both walking and not walking through a wall at the same time and in the same respect is a contradiction. God can perform miracles but not contradictions - not because his power is limited, but because contradictions are meaningless.
Peter Kreeft, Fr. Ronald Tacelli (2016). “Handbook of Catholic Apologetics: Reasoned Answers to Questions of Faith”, p.93, Ignatius Press
