How did God's plan ensure salvation through Christ?

God's sovereign plan for salvation centered on the person and work of Jesus Christ, who was foreordained to be the sacrificial Lamb for His people. Acts 2:23 indicates that Christ was delivered by the 'determinate counsel and foreknowledge of God', confirming that God had destined this plan from eternity. The fulfilling of this plan through Christ's obedience is crucial for recognizing the comprehensive nature of salvation. As stated in Hebrews 10:7, Christ's coming was written of Him from the very beginning, emphasizing His central role in God's redemptive history. This plan assures believers that their salvation is secure, not based on human effort but solely on the complete obedience and sacrifice of Christ.