A quote to ponder: “From Genesis to Revelation, God is emphatically represented in Scripture as being absolutely determinative in bestowing His mercy. He is shown as choosing before the foundation of the world those whom He will save and then, within time, bringing it to pass.
The apostle Paul clearly announced God’s sovereign grace in man’s salvation. He wrote that, from eternity, God chose, willed, decided, and planned to save some sinners. To elect is to choose, and God chose who would be saved. Paul wrote: ‘For he says to Moses, ‘I will have mercy on whom I have mercy, and I will have compassion on whom I have compassion.’ So then it depends not on human will or exertion, but on God, who has mercy’” (Rom.9:15-16). This is to say, God decides whom He will save in order to display His glory” (30-31).
Steve Lawson, Foundations of Grace, Volume 1.