John Wesley on Genesis 26:5

Abraham obeyed my voice - Do thou do so too, and the promise shall be sure to thee. A great variety of words is here used to express the Divine Will to which Abraham was obedient, my voice, my charge, my commandments, my statutes, and my laws - Which may intimate, that Abraham's obedience was universal; he obeyed the original laws of nature, the revealed laws of divine worship, particularly that of circumcision, and all the extraordinary precepts God gave him, as that of quitting his country, and that (which some think is more especially referred to) the offering up of his son, which Isaac himself had reason enough to remember. Those only shall have the benefit of God's covenant with their parents, that tread the steps of their obedience.