The Bible teaches that God does not change His mind because He is perfect, all-knowing, and sovereign. God is unchanging, without variation or shadow of turning, emphasizing His perfection and consistency. When God appears to “relent” or “repent,” it is expressed in human terms to show His compassion within His sovereign plan. Events like the Flood, Jonah’s preaching to Nineveh, and Moses interceding for Israel demonstrate that God’s mercy is always consistent with His perfect knowledge of every outcome. God’s sorrow over sin highlights His relational nature, showing that He cares deeply about human choices and repentance. Understanding that God’s judgments are just and His plans flawless calls us to trust Him fully, even when His actions unfold in ways we may not immediately grasp. This knowledge encourages us to approach God with awe, gratitude, and confidence, knowing that His love, justice, and wisdom are always perfect.
When the Bible mentions God's "sorrow" or the "changing of His mind," it expresses in human terms the fact that sin bothers God. Because of sin, people deserve judgment, and sometimes judgment takes place (like with the Flood during Noah's time). At other times, the sinners repent, and God responds with mercy instead of wrath. God's mercy is the emphasis. The NIV's rendering of Jonah 3:10 captures the thought perfectly: "He had compassion and did not bring upon them the destruction he had threatened." God does not change His mind; He simply has compassion.
The Bible teaches that God knows all things, including every eventuality. "I am God, and there is none like me, declaring the end from the beginning and from ancient times things not yet done" (Isaiah 46:9-10). Since God knew "the end from the beginning," He knew that He would send the Flood even before He created man. He was not "caught by surprise" by man's sin and did not "change His mind" about creating man. Also, God is never surprised by who responds to His grace and who does not. "He chose us in him before the foundation of the world" (Ephesians 1:4). He is the sovereign, all-knowing, perfect God.
So when the Bible speaks of God relenting or showing sorrow, it is not a sign of weakness or indecision but a reflection of His relational nature. God’s interactions with humanity are described in ways we can grasp—He expresses sorrow over sin and rejoices in repentance—so we can understand the seriousness of sin and the depth of His mercy. His responses are always consistent with His perfect knowledge and sovereign plan, showing both His justice and His compassion. God’s judgments are just, His mercy is genuine, and His plans are flawless, even when they unfold in ways we may not immediately comprehend. Knowing this calls us to approach God with awe, gratitude, and trust, knowing that His love and plans for us are best. We can come to God in prayer, knowing that He hears us and will do what is best.