Did Christ die for you? Can you say by faith, that on the cross he took your place? The testimony of your faith is made sure by the Holy Spirit working grace in your heart. Has it happened in your heart? If so, you see Christ dying for you, knowing that he is the sacrifice for all of your sins.
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).