How do Christians understand salvation through Jesus?

Christians believe that salvation is a sovereign act of God, rooted in His eternal counsel. As the surety of the better covenant (Hebrews 7:22), Jesus took full responsibility for the salvation of His people before time began. The belief in total depravity underscores that no one can save themselves; hence, salvation is granted to those whom God has chosen. This view emphasizes that Jesus' sacrifice was uniquely effective for those He came to save, as stated in John 10:15, 'I lay down my life for the sheep.' Therefore, salvation is not a mere offer to all but a definite redemption for the elect alone.