One of the event organisers, Uniting Church Minister Rev Matt Trounce, said the idea came after a few people said they thought it would be a good idea to both remember the innocent people who died in their place of worship, but also to stand for something within the community.

Watch as members of the crowd sing along to 'Imagine'. 

"We will stand up for respect, different beliefs and understandings, we don't want something like this to ever happen in Lithgow," he said. 

"So we must stand against that fear, and respect and welcome those who come from different backgrounds and cultures."

Rev Trounce said by standing with the Muslim community of Lithgow, people would stand against fear, hatred and bigotry.

"We want to stand for something positive and have respect for one another, and get rid of the violent atmosphere."

Imam Mohammed Atae Rabbi Hadi travelled from Canberra to join in the day.

"There is always light after darkness, always ease after hardship," he told the crowd. 

"We have seen a leader of a nation show the world it can be done. It is possible to lead with integrity, to lead with simple, age-old human values. The only irony is that, due to the current geopolitical climate and rhetoric, these basic principles seem refreshing to us, they seem novel to us.

"The question then arises, what do we here in Australia do next?"

Lithgow City Council mayor Ray Thompson said it was good to see so many people turn out in the name of peace.

"For too long as a western civilisation and countries, we think that we're safe from everything until something like this, a tragedy happens. It really brings us back to us.

"We're a town that really relishes living together. Coming together in all struggles and we really appreciate living in a land of peace, so we will be able to get over these things in times to come," he said. 

"It's absolutely tragic to think that someone from our society could go over and do such a thing."

Cr Thompson said he relished the thought "that we're all here today under the one umbrella and we're all trying to put all these catastrophes behind us".

Members of the crowd joined in as musician Isaac Trounce sang 'Imagine' to end the service. 

READ MORE: