How do we know God’s purpose includes salvation?

God’s purpose for salvation is not a reaction to humanity's fall but a foreordained plan meticulously crafted before the foundation of the world. In Revelation 13:8, it mentions the Lamb slain from the foundation of the world, indicating that God’s plan for redemption was established in eternity. This demonstrates that God's salvation is purposeful and particular, laid out for those He has chosen in Christ Jesus. This idea is further supported by 2 Timothy 1:9, which speaks of God's calling and grace given to us in Christ before time began, emphasizing the intentionality behind God's redemptive plan.