The Lord Dislikes Miracles
Said the Vorker: "It is said (Genesis 26:12): 'And Isaac sowed in that land, and found in the same year a hundredfold; and the Lord blessed him.' This mens: "The Lord thanked Isaac for tilling and sowing his land, and thus enbaling Him to provide for Isaac in a natural manner. For had Isaac not worked his field, the Lord would have been impelled to provide for him in a supernatural manner."
Source: Ramathaim Tzofim