What does the Bible say about God's calling by grace?

In Galatians 1:15, the Apostle Paul shares his profound experience of being called by God's grace. This calling is not based on human merit, but rather on God's sovereign choice, reflecting His purpose and divine will. Paul emphasizes that God separated him from his mother's womb and called him to reveal His Son through his ministry. This notion underlines the biblical truth that God's grace is not earned; it is freely given. It's a remarkable display of His mercy and sovereignty in choosing individuals to fulfill His plans, regardless of their past actions or intentions.