How do we know God is sovereign in choosing who gets saved?

God's sovereignty in salvation is evident throughout Scripture, illustrating that He saves whom He wills (John 5:21). The notion that man’s choice can thwart God’s plan contradicts the biblical testimony. For example, Acts 2:23 shows that even in the wickedness of men, God's predetermined counsel was fulfilled through their actions. It demonstrates that God's ultimate authority prevails despite human sin, affirming that He orchestrates events for His glory and purpose, which includes the salvation of His elect.