The prophet Isaiah foretold the death of Jesus as the substitute for sinners. He died in the place and for sinners (1 Corinthians 15:1-4). It was prophesied centuries before it happened. "He was led as a lamb to the slaughter" (Isaiah 53:7). The Bible is such an amazing book. Inspired by the Holy Spirit, the Bible declares by the foreknowledge of God, Christ crucified centuries before it came to pass.
Jesus died on the cross as the Lamb of God, dying for the sins of the world. John the Baptist pointed to Jesus as the fulfillment of the prophecy. He said, "Behold! The Lamb of God who takes away the sin of the world" (John 1:29). That is to say, Jesus died as the substitute for sinners. He died to redeem people out of all nations (Revelation 5:9).
Jesus, like the passover lamb in the Old Testament, died in the place of others. He is every believer's substitute at the cross. He took our sins, judgment, and punishment. He shed his blood and poured out his life on our behalf. He died that we may have life eternal. Our sin debt was paid by the Lamb of God. Christ died to save you as a believer (Acts 16:31).
On the cross Jesus, the Lamb of God, died as the substitute for all who believe the Gospel. Faith receives the grace of God at the cross. The resurrection proves that God accepted His sacrifice as our substitute. To all who have faith in Jesus Christ our Lord, we are saved by the One who died in our place for our sins.