The word gospel means good news. Jesus Christ is the good news for sinners, and that includes all of us (Romans 3:23). Jesus Christ died for our sins. On the third day he was raised from the dead (1 Corinthians 15:1-4). The gospel saves all who believe on the Lord Jesus Christ (Acts 16:30-31).
Christ is the gospel as the Son of God (John 14:6). We come by faith to God the Father, through God the Son. Romans 1:1-4 explains how we know God's Son. Jesus our Lord is introduced to us through the gospel from God.
Christ is the gospel revealed through the Holy Bible. That includes the books of the Old Testament in the Bible. The prophets foretold the coming of Messiah, who is God's Son. The first prophecy of his coming is in Genesis 3:15. He is the Seed of the woman. Isaiah 53 and Psalm 22 describe his death at the cross. Psalm 16:8-11 declares his resurrection.
Christ is the gospel through the power of the Holy Spirit (1 Thessalonians 1:5) Jesus is declared to be the Son of God with power according to the Spirit of holiness, by the resurrection from the dead (Romans 1:4). The same power that raised Jesus from the dead works in our hearts to confirm the good news of God. The power of the Holy Spirit works in believers to know Jesus as Lord (1 Corinthians 12:3).
