John Trapp on John 3:5

Verſe 5. Be born of water, and the holy Ghoſt.] That is, of the holy Ghoſt working like water, cooling, cleanſing, &c. In alluſion, belike, to that firſt waſhing of a new-born babe from his bloud, Ezek. 16.4. Or elſe to thoſe Leviticall waſhings, and not without ſome reference to Nicodemus, and his fellow-Phariſees, who placed a great part of their piety in externall waſhings, as do alſo the Mahometans at this day. Every time they eaſe nature (ſaith one that had been amongſt them) they waſh thoſe parts, Blunt voyage into Levant, pag. 100. little regarding who ſtands by. If a dog chance to touch their hands, they waſh preſently; before prayer they waſh both face and hands, ſometimes the head and privities, &c.