Australian police on Tuesday said a knife attack on an Assyrian church bishop and some followers in Sydney was a terrorist act motivated by suspected religious extremism, as the country reeled from a second stabbing incident in three days. At least four people were wounded in the attack, including Bishop Mar Mari Emmanuel of the Assyrian Christ The Good Shepherd Church, when a man lunged at him with a knife during a service live-streamed on Monday. The incident at the western Sydney suburb of Wakeley triggered clashes outside the church between police and an angry crowd of the bishop’s followe…