John Trapp on Isaiah 49:25

Ver. 25. But thus ſaith the Lord] Here's a full anſwer to the former objection, as God doth uſually in the Scripture frame anſwers to mens thoughts: the Law is ſpiritual and heart-reaching.

And I will contend with him that contendeth with thee] I will over power the devil, and thy moſt head-ſtrong luſts; bringing thee out of his ſlavery, ſo that thou ſhalt be able to do all things through Chriſt who ſtrengtheneth thee, Phil. 4. Thy temporal enemies alſo, thy perſecutors ſhall feel my power, as did Pharao, Nero, Diocletian, Julian, &c. See on Gen. 12.2.