Q. 62. Why then must such circumcised adult males also be catechized? A. 62. For Exodus 12:48 says they must ‘come near’ – meaning: ‘be catechized’ (12:26f).
Q. 63. After strangers have been catechized, may their circumcised boys too eat? A. 63. No, God says "let him" (the stranger but not his boys) then "keep" it. Exodus 12:48.
Q. 64. When can such a stranger’s circumcised boys "keep" and eat of the Passover? A. 64. Only when such sons themselves have later been catechized and ‘come near.’