ספר ויקרא

Or one could say, since "You made them all with wisdom", everything in the world was made with wondrous wisdom. Therefore,when the Holy Blessed One changes the orders of creation, it is as if They nullify Their wisdom, as if such a thing could be. This is like the way a father speaks to his young child. The father's love for his child leads him to contract (metzamtzem) his adult intellect and speak with the child according to his capabilities. Similarly, based on the greatness of Their love, the Blessed One performs for us signs and wonders and changes the orders of creation. This is "peh sach", the conversing mouth [discussed in point 5 above as an idea of Passover], from the language of the verse, (Habakkuk 3:6) "the age-old mountains are shattered ("sachu", double meaning 'to converse')" referring to when they descend from their level.