Immersion for conversion?

Although there is debate, the stronger arguments favor the idea that at least some of Jesus’s Jewish contemporaries expected gentiles to immerse themselves when converting to Judaism. John the Baptist also used water immersion as a form of purification, prefiguring the greater One’s Spirit immersion (Mark 1:8; Ezek 36:25-27). Craig offers just a few comments on ancient baptism from onsite at the River Jordan (but he didn’t talk underwater). (Oops, he didn’t go completely under!!! Cheater!!! But he was already baptized officially before this)