Ius naturale est quod natura, id est ipse deus, docuit omnia animalia
Natural law is that which nature, that is, God himself, taught all living things. (Bracton, v. 2 p. 26, emphasis added)

Here, we see that in our law, nature and God are convertible terms. The actual content of the law of nature, or the law of God, is a secondary question. Thus, we may look at Freedom and Servitude and give a better, more direct translation:

“Freedom is the natural faculty of doing what each person pleases to do according to his will, except what is prohibited to him of right or by force. Servitude, on the other hand may be said to be the contrary, as if any person contrary to freedom should be bound upon a covenant to do something, or not to do it.” (Henrici de Bracton de Lebigus et Consuetudinibus Angliae, Sir Travers Twiss, Q.C., D.C.L., trans. London: 1878, p. 369.)

This may be translated

Freedom is the natural faculty of doing what each person pleases to do according to his will, except what is prohibited to him by that which God taught all living things or by force. Servitude, on the other hand may be said to be the contrary, as if any person contrary to freedom should be bound upon a covenant to do something, or not to do it.