And none of you could have prevented it from him.means, `none of you would be able to come between Us and him if We wanted to do any of this to him.'The meaning behind all of this is to say that he (Muhammad) is truthful, righteous and guided because Allah determined what he is to convey from Him, and Allah helps him with fantastic miracles and definite proofs.Then Allah says,وَإِنَّهُ لَتَذْكِرَةٌ لِّلْمُتَّقِينَ