How does free willism contradict biblical teaching on salvation?

Free willism posits that humans have the inherent ability to choose to accept or reject salvation, which contradicts clear biblical teaching regarding human depravity and divine sovereignty. Romans 9:16 expressly proclaims that salvation is not of him that willeth, nor of him that runneth, but of God that showeth mercy. By asserting that God needs the sinner's consent, free willism diminishes God's sovereignty and suggests a weak dualism where God is reliant on human action. This perspective skews the true nature of faith. Instead of being a gift from God, faith becomes a decision based on human volition, which is not supported by Scripture. Instead, the Bible teaches that belief itself is a result of being born of God (1 John 5:1) and that true faith arises not from human initiative but as a gracious gift bestowed by God.