John 5: Jesus gives three evidences for his identity — John the Baptist, his miracles, and OT prophecy; Winger cites this as Jesus using evidential method

Jesus explicitly points to three witnesses confirming who he is in John 5. Sye's response: these are arguments for the deity of Christ to people who already believe in God — not arguments for the existence of God. He would not use OT prophecy with a person who believes in God but denies Jesus; instead he would open the Bible with them.