This speech has a twofold meaning. First, that the children of the kings of the earth are free with the kings of the earth; but strangers, foreigners in the land, are not free, because of those that oppress them, as the Egyptians did the children of Israel.
The second sense is; forasmuch as there be some who are strangers to the sons of the kings of the earth, and are yet sons of God, therefore it is they that abide in the words of Jesus; these are free, for they have known the truth, and the truth has set them free from the service of sin: but the sons of the kings of the earth are not free; for “whoso doth sin, he is the servant of sin.” [John 8:34]
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).