Kabbalah zu Dewarim 6:21

And in this sense "whether as children or servants". If as children, that it is written regarding them "you are children to Ad-nai your God" (Deut. 14:1). If as servants "since the children of Israel are My servants" (Lev. 25:55). And not the rest of the nations. But those who are obligated and do not deal with Torah and mitzvot, and do not have the yoke of Torah and tefilin and the rest of the commandments, they are servants of the nations of the world, and are made slaves to them. As "we were slaves to Pharaoh in Egypt" (Deuteronomy 6:21).