"Let them arise and help you": It is not written "Let them arise veya'azru ethchem," but "Let them arise veya'azruchem" (implying that they cannot even help themselves!) For all (transgressions) the Holy One Blessed be He withholds His wrath, except for desecration of the Name, for which He exacts punishment immediately, as it is written (Devarim, Ibid. 39) "See, now, that I, I am He, and there is no god with Me!" This is the rebuttal for those who would say: There is no Authority in heaven!
"See, now, that I, I am He!": If one says there are two Authorities in heaven, he is rebutted — "and there is no god with Me!" — But perhaps He cannot bring to life or put to death or bring harm or benefit; it is, therefore, written "I put to death and I bring to life; I wound and I heal, etc." And it is written (Isaiah 44:6) "Thus has said the L-rd, King of Israel, and its Redeemer, the L-rd of hosts: I am the first and I am the last, and besides Me there is no G-d."