Spiritual Law is superior to Physical Law.   

The Healings, miracles, exorcisms and resurrections that Jesus did violated Physical Law.   They were done on the principles of Spiritual Law which operates by faith and the power of the Holy Spirit.   

The Law Of God has built-in rewards and punishments.   God does not regularly, personally get involved with either.   

So shall my word be that goes forth out of my mouth: it shall not return unto me void, but it shall accomplish that which I please, and it shall prosper in the thing whereto I sent it. Isa 55:11 The Word Of The Lord (the Law Of God) has built-in rewards and punishments.      This is what this verse is speaking to.     God's Word will accomplish God's will which is to bless that which is good and curse that which is evil.

Those who believe in Extreme Sovereignty misunderstand the power of our Lord`s Words to effect blessing and cursing.   Once He has spoken, His Word will effect the intent of His heart.   

Unlike humans who have to take personal action to follow up on the rules we put in place, our Lord is free to operate fully as I Am in love and Grace.   

The best example of this is gravity.   It is a Physical Law that our Lord put in place in the beginning.   
   → gravity enables stability and order
   → gravity kills those who fall from great heights

Our Lord is not directly involved in either the blessing or the cursing of gravity with respect to individual events.