Sforno on Deuteronomy 32:9/ספורנו על דברים ל״ב:ט׳

1יעקב חבל נחלתו, for he as well as his sons became servants of the supreme G’d. By contrast, whenever there was a pious and G’d fearing individual among the gentile nations, such piety and belief in G’d was never transmitted to and carried on by the next generation.