How do we know that predestination is a biblical doctrine?

The doctrine of predestination is strongly supported by various passages in the New Testament, such as in Ephesians 1:4-5, which states that God chose us in Christ before the foundation of the world. This aligns with the testimony of the apostles, particularly Peter, who describes the crucifixion of Jesus as being delivered by the determinate counsel and foreknowledge of God (Acts 2:23). Such passages affirm that God’s plan is established beforehand and that He is actively involved in history, orchestrating all events for His glory. Understanding this helps to illuminate God's nature and His intention in the redemption of His people.