Q: Why does God seem to act differently in the Old Testament than how He does in the New Testament?  —Michael

A: It’s a common misconception that God in the Old Testament acted differently than He did in the New Testament. Often, we picture Him as a terrifying God of wrath, judgment, and punishment in the Old Testament, but embrace Him as a loving God of forgiveness, mercy, and grace in the New Testament.

But the God of the Bible doesn’t change—He is immutable (Numbers 23:19; 1 Samuel 15:29; 2 Timothy 2:13; Hebrews 6:17–18; James 1:17). God Himself has said, “I am the Lord, and I do not change” (Malachi 3:6). The apostle James said that God “never changes or casts a shifting shadow” (James 1:17). And the Bible is very clear that our eternal, perfect, omniscient, and omnipotent God is unchanging and unchangeable!

Perhaps, one of the reasons why we might think God acted differently in the O.T. (than He did in the N.T.) could be due to the fact that God has progressively revealed Himself to us throughout human history—in particular through the nation of Israel, and through Jesus Christ (Acts 13:16-41; Romans 16:25-26; 1 Corinthians 2:7-12; Ephesians 3:3-5; Colossians 1:25-26; Hebrews 1:1-2; 1 Peter 1:10-12).  Since no single Bible passage can give us a complete picture of who God is, both the OT and NT must be taken together if we’re to truly understand who God is.

The God of wrath in the OT is also the one who revealed Himself as “the God of compassion and mercy . . . slow to anger and filled with unfailing love and faithfulness . . . lavish[ing] unfailing love to a thousand generations . . . forgiv[ing] iniquity, rebellion, and sin” (Exodus 34:6-7; Numbers 14:18; Deuteronomy 4:31; Psalm 86:5,15; Psalm 103:7-13; Isaiah 54:10; Lamentations 3:22; Joel 2:13; Jonah 4:2; Micah 7:18). Even after being punished through the Babylonian exile, Nehemiah affirmed God’s great love in his prayer,  “But you are a God of forgiveness, gracious and merciful, slow to become angry, and rich in unfailing love” (Nehemiah 9:17).

On the other hand, the God who loved the world so much that He gave His only Son (as revealed in the N.T.), is also the God of wrath and judgment. The apostle Paul warned that “God shows his anger (wrath) against all sinful, wicked people” (Romans 1:18), and those who refuse to repent “are storing up terrible punishment for [themselves]. For a day of anger is coming. . . . He will judge everyone according to what they have done. . . .. He will pour out his anger and wrath on those who refuse to obey the truth and instead live lives of wickedness” (Romans 2:5-8). “Because of these, the wrath of God is coming” (Colossians 3:6, NIV). And the apostle John writes of the terrifying outpouring of “the wrath of the Lamb” in the book of Revelation, “For the great day of their wrath has come, and who is able to survive?” (Revelation 6:16-17).

As we read both the O.T. and N.T. in their proper perspectives and contexts, it’s clear that the God of the Old Testament is the same God of the New Testament. And we proclaim, “Jesus Christ is the same yesterday, today, and forever” (Hebrews 13:8).  —K.T. Sim

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