The Gospel Is a declaration by God that his Son Jesus Christ has victoriously defeated sin, death and the devil, Colossians 2:15 and that he is now, "The King of Kings and the Lord of Lords" Revelation 19:16.
Because of the victorious work of Christ, God has exalted Jesus and has given him a name that is above every name, that at the name of Jesus every knee should bow and every tongue should confess that Jesus Christ is Lord to the glory of God the Father, Philippians 2:9, 10, 11.
Calvinism, Catholicism, Religion, does not honor God's Son, as a matter of fact these religions dishonor God's Son and in doing so dishonor God.
Calvinist do not believe that Jesus atoned for the sins of the whole world. They dishonor God's Son and bring judgment upon themselves. Catholics do not believe that Jesus has defeated sin, death and the devil. Catholicism is anti-Gospel and anti-Christ. They dishonor God and his Son Jesus Christ. They also are under the judgment of God
We honor God's Son by believing and having faith in him. It is not Jesus Christ plus your religion. It is Jesus Christ plus nothing. In the judgment many will try to present their religion to Christ as a means of salvation. "Many will say to me in that day, Lord, Lord, didn't we...? Matthew 7:21-23. Didn't we join the Catholic church? Didn't we embrace Calvinism? Didn't we speak in tongues? Didn't we go to church? Didn't we?, Didn't we?, Didn't we,? They thought that salvation was all about them. They did not honor God's Son by believing and trusting in him and they perished.