How did one sin change everything?

In Genesis 3, a single act of disobedience plunges the whole world into ruin. In this study, Dr. Toby Holt explains the fall of mankind — and the first promise of a Savior.

The serpent tempts Eve by twisting God’s word and questioning His goodness, and both Adam and Eve eat the forbidden fruit. Shame, blame, and death follow at once, and the curse spreads to all of creation. Dr. Holt explains that this one sin shows how serious sin is and how holy God is. Yet even in the curse comes the first gospel promise: a coming “Seed” of the woman who will crush the serpent’s head — pointing ahead to Christ.

Questions this study answers:

1. How did the serpent tempt Eve? By questioning and twisting God’s word and casting doubt on His goodness. He made her believe God was withholding something good.

2. How serious was this one sin? Serious enough to bring death and to curse all creation. It shows both the gravity of sin and the holiness of God.

3. Where is the hope in this dark chapter? In Genesis 3:15 — the promise of a coming Savior, the Seed of the woman, who would crush the serpent. It is the first announcement of the gospel.

“And I will put enmity between you and the woman, and between your seed and her Seed; He shall bruise your head, and you shall bruise His heel.” — Genesis 3:15 (NKJV)

Speaker: Dr. Toby Holt is the President of New Geneva Theological Seminary, a Reformed seminary in Colorado Springs. He is known for clear, down-to-earth Bible teaching, and his sermons have been downloaded more than 1.9 million times on SermonAudio.

Listen and go deeper: This sermon is part of the Genesis Explained study from New Geneva Theological Seminary. Find more verse-by-verse teaching across the Bible at newgeneva.org. To support this teaching ministry, visit newgeneva.org/give.