'The sons of Ham' means derivations of matters of doctrine and of forms of worship resulting from the corrupted internal worship meant by Ham. 'According to their families, according to their tongues, in their lands, in their nations' means according to the particular and the general character of each one, 'according to their families' meaning according to their habits and customs, 'according to their tongues' meaning according to their individual beliefs, 'in their lands' meaning in general as regards such beliefs, 'in their nations' in general as regards such habits and customs.