What does the Bible say about predestination and adoption?

In Ephesians 1:5-6, the Apostle Paul writes about being predestinated to adoption by Jesus Christ. This means that before the foundation of the world, God chose a specific people to receive all spiritual blessings in Christ. God's predestination is an act of His grace and will, highlighting that He does not choose individuals based on any merit or qualities within them. It assures believers that their adoption as children of God is not contingent upon their actions but rather solely on God's sovereign choice and purpose.