The King on Wednesday was praised for his "convening" power during an interfaith meeting at Buckingham Palace.
King Charles III, 75, brought together faith leaders from across the UK to try to find ways to help different religions work together.
He discussed pressing issues with representatives from faiths including Sikh, Hindu, Muslim, Christian and Jewish communities for around an hour in the palace blue drawing room.
It comes as the war in Gaza rages and tens of thousands of people have been attending marches in London.
The King heard how inter-faith leaders wanted to build on the work forged in response to Covid-19, reach young people at schools and enable teachers to discuss issues such as the Gaza conflict and facilitate mentoring programmes for women.
She said afterwards: "The King is here to act as a convener and facilitator and it is clear he cares a lot about the communities.
"With the King convening and facilitating, it encourages us to step out and come together to ease the impact on tensions."
Canon Doctor Andrew Smith, Director of Interfaith Relations in Birmingham, said: “There’s been lots of good interfaith relationships over the years particularly during Covid-19.
“Geo-politics affects this and straining relationships. People are really feeling hurt and angry and really struggling.
“Having the King means this is being taken seriously. His questions were genuinely engaged questions and it gives enormous encouragement.
“We’ve got to keep things going.”
Jodie Franks, of Stand Up! Education Against Discrimination, representing the Jewish community, said afterwards: "I spoke to the King about the importance of interfaith relations on a local level to young people specifically in a school setting."
Her group sees people from Jewish and Muslim communities visit schools to speak about Islamophobia and antisemitism.
She added: "We find that educators are nervous to broach these difficult topics and don't feel confident to have conversations in classrooms so instead children are not having these conversations in the safe space of the classroom but in corridors instead."
The gathering at Buckingham Palace follows the King’s visit to Lambeth Palace Library in November, where His Majesty joined leaders from across the UK’s communities to mark Inter Faith Week, which aims to strengthen relations at all levels.
It has also emerged that interfaith leaders will join the Windsor Leadership Programme at Windsor Castle.
The group of 18 faith leaders, which is invite-only, will meet at Windsor Castle to "explore the complex challenges troubling our nation" and "discuss how we, as leaders, can positively change our troubled society for the better in this era of toxic behavior."
The conversations will be confidential and will meet for the first time in the New Year.
