What does the Bible say about how God saves a sinner?

According to Ephesians 1, God saves sinners entirely by His grace, which is unearned and freely given. This salvation is executed through various means: sovereign grace, where God chooses to bless sinners not based on their merits but solely by His good pleasure; electing grace, where God chooses whom to save before the foundation of the world; and redeeming grace, where Christ pays the debt of sin for His people. Overall, salvation is rooted in God's sovereign plan, aimed at glorifying His grace and ensuring that His people are redeemed through faith in Christ.