A new mural has appeared overnight in Sydney's inner west of former Rugby Australia star Israel Folau.

The mural shows Folau perched next to a bright yellow Lamborghini, in a Rugby Australia jersey and Gucci slide shoes. At his feet is a cap, and an EFTPOS machine.

A sign next to Folau reads a mock religious message, "The righteous shall taketh from the punters for the divinity of one's property portfolio is most sacred in the eyes of the lord. Amen!".

The sign then offers dummy account details for Folau, and promising free Holy Water with every donation.

Pictures: Scott Marsh

The artist, Scott Marsh, shared the image on his social media, along with a Bible verse from Matthew 19:4.

"It is easier for a camel to go through the eye of a needle than for a rich man to enter the kingdom of heaven," Marsh wrote on Instagram.

Folau recently failed to reach an agreement with Rugby Australia, after he lost his job over homophobic posts he made on social media. Folau believes his religious freedom is being compromised. Rugby Australia say he is in breach of his contact.

Folau's battle with Rugby Australia has ignited searing debate around the country about free speech, anti-discrimination laws and personal freedom.

After Folau was sacked by Rugby Australia, a GoFundMe was set up to raise money to fund his legal battle against his employer. The fundraising effort quickly gained steam over four days, and reached over $750,000.

But GoFundMe closed down the page for breaching its own terms of service.

Folau's fundraising efforts were then re-serviced by the Australian Christian Lobby, who personally kicked off the fundraising by donating $100,000.

The page quickly reached its target and halted fundraising efforts after $2.2 million was raised.

The mural appears on a wall at the Botany View Hotel in Newtown in inner west Sydney.