The Further Adventures of Robinson Crusoe by Daniel Defoe Chapter 6 Page 45

use the same freedom and plainness in the second, and hoped I would take it as well; and this was, that notwithstanding these English subjects of mine, as he called them, had lived with these women almost seven years, had taught them to speak English, and even to read it, and that they were, as he perceived, women of tolerable understanding, and capable of instruction, yet they had not, to this hour, taught them anything of the Christian religion — no, not so much as to know there was a God, or a worship, or in what manner God was to be served, or that their own idolatry, and worshipping they knew not whom, was false and absurd. This he said was an unaccountable neglect, and what God would certainly call them to account for, and perhaps at last take the work out of their hands.

He spoke this very affectionately and warmly.