Folau has been told by Rugby Australia that he is in breach of its code of conduct and will have his four-year contract terminated, subject to the 48-hour window for him to appeal.
But now his global career appears to be over following his Instagram post, which said, "Drunks, homosexuals, adulterers, liars, fornicators, thieves, atheists and idolators - Hell awaits you".
Wallabies head coach Michael Cheika has ended Folau's global career by revealing his comments on social media - his second such infringement - mean he can not be selected.
In his first interview since posting homophobic messages on social media on Wednesday, Folau wouldn't back down on his actions and said he would be prepared to accept his fate from rugby authorities. "When they behave like this or create negative comments that does make it very very hard for everyone in the rugby community".
Castle said Folau had been unapologetic about the posts and his stance when she met him last Friday.
Cheika emphasised the importance of the team but also said "everybody has the right to believe (in what they want) and we respect that right".
"Getting out in that disrespectful manner publicly is not what our team's about", Cheika said on Monday.
"When you play in the gold jersey, we're representing everyone in Australia - everyone that's out there supporting us". "These comments are really disappointing and clearly don't reflect the spirit of inclusion and diversity that we support", a Qantas spokesman said in a statement sent to CNN.
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The notice warrants "termination of his employment" with Rugby Australia.
When asked whether he would select Folau again, Cheika, who fronted the media alongside Wallabies captain Michael Hooper and NSW Waratahs coach Daryl Gibson, said it was highly unlikely.
Folau is unrepentant over the post, which - along with Vunipola's - remains visible, adding that: "I believe His plans for me are better than whatever I can think". But at the end of the day it's not for me or anyone else to condemn a person, we don't know what goes in their life and what has bought them to where they are.
Folau said he would "absolutely" be content with a life away from rugby, although he admitted he would miss it.
"Whatever His will is, whether that's to continue playing or not, I'm more than happy to do what He wants me to do", he told the Herald.
While many people, including some past and present players, chastised the 30-year-old for his posts, others said he was exercising his freedom of expression and sharing the beliefs of his faith - citing scripture that supports his comments. If that's not to continue on playing, so be it.
"Following the events of previous year, Israel was warned formally and repeatedly about the expectations of him as player for the Wallabies and NSW Waratahs with regards to social media use and he has failed to meet those obligations", Castle said.
"I have love towards everyone that might be saying negative things. Jesus Christ loves you and is giving you time to turn away from your sin and come to him", his post said.
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