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Susan Mouw: Defending the Faithfulness of God
How a lunch conversation with a Reformed Baptist pastor sparked a theological journey that would reshape one author's understanding of Scripture — and offer hope to every believer who has ever questioned whether God truly keeps His promises.
Some books are written to inform. Others are written to persuade. But a rare few are written to defend the very character of God Himself. Has God Cast Away Israel? by Susan Mouw belongs to this final category. What began as a simple question over lunch with a Reformed Baptist pastor became a theological journey that would challenge widespread teaching within the modern church. The question was deceptively simple: Is God really done with Israel?
The Journey from Logic to Faith
Susan Mouw brings a unique perspective to theological writing. Her background as a computer programmer, where logic and precision are paramount, informs her approach to Scripture. She reads the Bible with the same careful attention to detail that she once applied to code, refusing to spiritualize or allegorize passages that speak plainly of God's plans.
It was at age 42 that Susan gave her life to Christ, recognizing that despite having the four-bedroom house, the pool, and all the latest gadgets, something fundamental was missing. This journey from logic to faith became the foundation for a writer who cares deeply about getting the theology right.
Her previous work, Road to the Cross, established her as a voice of clarity in Christian publishing. But it is her latest book that addresses a question going to the heart of God's character.
The Question That Demanded an Answer
The topic of replacement theology came to the forefront during a lunch with a Reformed Baptist pastor. He expressed concern over the many within his church who believed in supersessionism — that the Church did, indeed, replace Israel. He asked Susan if she would address that in her next book.
The research that followed became Has God Cast Away Israel?. As Susan studied Scripture from Genesis to Revelation, the more convinced she became that replacement theology simply did not align with the whole counsel of God. The more she studied, the more impossible it became for her to conclude that God had abandoned the nation He repeatedly promised to restore.
The Five Great Influences Behind the Book
The Growing Acceptance of Replacement Theology. The pastor's concern grew within her. She became deeply concerned that many Christians were being taught that God's promises to Israel had been transferred to the Church — a teaching that calls into question God's faithfulness to His own covenant promises.
A Desire to Encourage Believers to Study the Entire Bible in Context. Susan wanted readers to see that when Scripture is read consistently and literally, God's plan for Israel becomes remarkably clear.
The Neglect of Bible Prophecy in Many Churches. Approximately twenty-eight percent of God's Word is prophetic, yet many Christians receive little teaching on these passages. Understanding God's prophetic program brings clarity, hope, and confidence rather than confusion and fear.
Personal Study of Scripture. Years of studying the Old Testament prophets alongside the New Testament convinced Susan that God's covenants with Abraham, Isaac, Jacob, and David remain in force.
A Burden to Defend God's Character. At its heart, this is not simply a book about Israel. It is a book about the faithfulness of God. If God could permanently set aside His unconditional promises to Israel, then every believer would have reason to question His promises to the Church.
The Five Central Truths
God Has Not Cast Away Israel. Romans 11 answers the book's title directly. Israel's present unbelief is temporary, not permanent. God still has a future purpose for His covenant people.
God's Covenants Are Unconditional and Irrevocable. The Abrahamic, Davidic, and New Covenants demonstrate God's unwavering commitment to fulfill exactly what He promised.
The Church and Israel Have Distinct Roles in God's Redemptive Plan. Both are precious to God, but they are not the same entity. Understanding this distinction is crucial.
Bible Prophecy Should Strengthen Faith, Not Create Fear. Fulfilled and future prophecy should increase our confidence in God's sovereign control.
God Always Keeps His Promises. This is the foundation upon which every other theme rests. From Genesis to Revelation, God proves Himself completely trustworthy.
A Living Testimony
What makes Susan Mouw's witness particularly powerful is that she does not merely write about God's faithfulness. She lives it.
Recently, Susan's husband underwent emergency vascular surgery to remove major clots down his right leg. Days later, he was back in surgery to remove a portion of his right foot where tissue was too badly damaged to recover. Through this trial by fire, Susan's response has been unwavering: "But I know God is in control."
It is one thing to write about the certainty of God's covenant faithfulness. It is another thing entirely to live it in the ICU. Susan Mouw is living out the theology she writes about, and that is a testament to the very faithfulness she defends.
The Final Word
If readers close this book with one lasting conviction, Susan hopes it is this: God has never abandoned Israel, because God never abandons His promises. His faithfulness to Israel is a testimony to His faithfulness toward every person who places their trust in Jesus Christ.
"This book is ultimately not about Israel. It is about the God who always keeps His Word."
This article was written and produced by BookChemistry Agency as part of our featured author initiative.
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