How do we know God chooses us?

The assurance of God's choice comes from the understanding of His sovereign grace, which is the active decision of God to select and save certain individuals. According to 1 Corinthians 4:7, every believer must recognize that any good they possess is a result of grace received from God, not a product of their own merit. This doctrine teaches that salvation is God's work from start to finish, and those who feel the tug of His call are assured of their election based on God’s grace alone.