Is this Possible ?

Last Friday i went to masjid for performing Jumma , I had arrived earlier than usual , so I did hear some lecture from our scholar , who was sitting on the Mimber ,He was performing his lecture very Emotionally and very strongly ,

But when I heard i did not understand  ,what he were talking about ? he was talking about Hazrat MUHAMMED  (صلى الله   عليه وسلم) and oneness of Allah Or criticizing on other sectors , And it was intrested that the people was encouraging him with SUBAHAAN ALLAH SUBHAAN ALLAH .. And the person next to me was going to be so much delight ,

However, the time to pray and we pray .And the people packed Masjid , it was half empty before the Dua , They felt that,  they were in a hurry if someone stood up for  prayer will not find a way out of the Masjid and the person also was in that peoples who were too delight next to me .And Masjid was almost completely empty after Dua , 

Alhamdulillah our sector So that such , But we can not convince Allah by just  saying that we are right and just we are right , The first payment of duty  and morality already , And many duties which we have to pay , if we will empty of our duties so Of course if something happens, as you read

I'm not saying i'm perfect but i can understand that what is important , Allah has given us to understand , There is something wrong we are just think that we will go in Heaven in just this base we are from right sector without complete our duties  ?