Romans 9:14-18 — What is the great mystery of salvation? According to Dr. Martyn Lloyd-Jones in this sermon on Romans 9:14–18 titled “God’s Mercy,” it is not why every sinner is not saved, but why any are saved. This is because as the apostle Paul says, God does not have to give mercy to anyone but He chooses to because He is a gracious God. There is no doubt that this is a hard teaching to grasp; this is seen in the fact that many wise and godly Christians have rejected it. Yet God’s word is clear that from start to finish, salvation is a free and gracious gift from God. For if God had to give salvation to everyone, how would it be all of grace? As the Scripture teaches, God gives mercy to whom He wills to give mercy and He hardens whom He wills to harden. This truth is seen in the Lord Jesus’s parable of the workers in the vineyard. Here it is seen that God is not obligated to give mercy to all, yet He chooses to give some in order that His name might glorified. What should be one’s response to this teaching? This great doctrine should cause the Christian to forsake all hope in themselves and look to Jesus who alone can save.