Commentary Par XX 52-54

Tozer (DDP Tozer.Par.XX.52-54) paraphrases and interprets this passage as follows: '"when a worthy prayer causes that which was ordained for the present time to be postponed to a future time"; this was what happened in Hezekiah's case through the postponement of his death.  The meaning of the entire passage here is, that what God has ordained is not changed in answer to prayer, because God has already provided for it.'