How do we know God chose His people?

God's choice of His people is explicitly detailed in Ephesians 1:4, where it is declared that we were chosen in Him before the foundation of the world. This election is not based on any foreseen merit or action but solely on God's gracious will. Additionally, 1 Samuel 12:22 supports this, asserting that it pleased the Lord to make Israel His people. This sovereign act of election underscores God’s authority in salvation, as laid out in Romans 9:11, which states that God's purpose according to election stands unopposed.