<p>11:15 <i>And if indeed they had been mindful of that country from which they went out, they would have had opportunity to return</i>- Abraham was called to leave Ur and travel to Canaan, the land promised to him. If his heart had remained in his native land, as the heart of most immigrants and exiles does, God would have worked in his life to make it possible for him to return to it, and thereby reject God's covenant with him. The fact Abraham wasn't given this opportunity indicates his faith. It also shows that God gives us the opportunity to renounce our faith if that is what we want in our hearts (cp. Balaam).</p>