The Further Adventures of Robinson Crusoe by Daniel Defoe Chapter 5 Page 34

there was a God, by the very common method of seamen, swearing by His name: nor were their poor ignorant savage wives much better for having been married to Christians, as we must call them; for as they knew very little of God themselves, so they were utterly incapable of entering into any discourse with their wives about a God, or to talk anything to them concerning religion.

The utmost of all the improvement which I can say the wives had made from them was, that they had taught them to speak English pretty well; and most of their children, who were near twenty in all, were taught to speak English too, from their first learning to speak, though they at first spoke it in a very broken manner, like their mothers.

None of these children were above six years old when I came thither, for it