What do we do when Gods promises seem to fall short of reality? Abrahams story points weary believers to the gospel, providing an example and profound encouragement for us today.

Iain M. Duguid (PhD, University of Cambridge) is professor of Old Testament at Westminster Theological Seminary in Philadelphia. He has written numerous works of biblical exposition, including Esther & Ruth in the Reformed Expository Commentary series, Ezekiel in the NIV Application Commentary series, and Numbers in the Preaching the Word series.