How do we know that Jesus truly accomplished salvation?

The certainty of Christ's accomplished salvation can be found in the understanding of His redemptive work as being directed to the elect. The sermon emphasizes that if Jesus' sacrifice was merely an offer to all without any effect, then it undermines the success of His mission. However, if He died for those chosen by the Father, as indicated in Isaiah 42:1, it confirms that His purpose was fulfilled. The perception of Christ's victory reflects God’s sovereign will and His unswerving promise to save those whom He called, establishing that salvation is not of works but solely of grace.