A man accused of posting an antisemitic message online supporting the Bondi massacre will spend Christmas in jail. Martin Thomas Glynn, 39, was arrested in Yangebup, Perth, after a member of the public reported his social media post to the police. Police raided his home on Tuesday, seizing several firearms, a large amount of ammunition, and flags linked to banned terrorist groups Hezbollah and Hamas. Glynn faced Fremantle magistrates court on Wednesday. He was charged with racial harassment, possession of a prohibited weapon, and improper firearm storage. Appearing without a lawyer, he was remanded in custody until his next hearing in February. Glynn's post came hours after the 14 December Bondi terror attack, where two gunmen killed 15 people celebrating Hanukkah. Western Australia's police minister, Reece Whitby, said, "It is appalling that, in the wake of Bondi, anyone would say anything that supports, in any way the actions of a horrific, vile, criminal terrorist act." Whitby warned, "Words are dangerous. Words have potential to lead to catastrophic outcomes ... anyone that says anything remotely intimidatory, suggestive of violence needs to be acted on very quickly." The community member who reported Glynn's post was praised by WA's acting premier Rita Saffioti and police chief Col Blanch. Whitby highlighted the importance of community involvement in keeping WA safe. Police said Glynn holds a gun licence for hunting and all but one firearm was registered. Blanch plans to cancel Glynn's permit. Officers investigating as part of Operation Dalewood confirmed Glynn was not known to authorities before. There is no evidence of planned attacks or a network involved. Blanch said, "We don’t think there is an ongoing threat. We think this is an individual who has made these comments online." Whitby reminded that WA has strict penalties for hate crimes, including up to five years for Nazi symbol displays and up to 14 years for inciting racial hatred.