How do we know that salvation is not based on human decision?

The conviction that salvation is not based on human decision stems from the biblical assertion that humanity, in its natural state, is spiritually dead. Ephesians 2:1 states that we were 'dead in trespasses and sins.' This means that apart from divine intervention, we cannot respond to God. As John Reeves elaborates, the idea that God offers salvation for individuals to accept or reject diminishes His sovereignty and power. The truth is that God's grace acts upon the hearts of the chosen, enabling them to come to Him. This is evident in passages like Romans 8:30, which declares, 'Moreover whom he did predestinate, them he also called.' Thus, it is God's initiative in salvation that assures us of His grace, not man’s decision.