Revelation 18:2-8;24 is often misapplied to the Roman Catholic Church. The great harlot Babylon symbolizes the Rome of pagans not of Christians. Despite persecution and martyrdom, Christians of the first century are urged not to surrender their precious faith in Christ.
What is a Christian?
Since anti-Catholics often renounce the Christian nature of Catholicism, we would do well to look at the sober and rich definition of this question in the universal catechism:
[CCC #1694] Incorporated into Christ by Baptism, Christians are “dead to sin and alive to God in Christ Jesus” and so participate in the life of the Risen Lord (Romans 6:11 and cf. 6:5; cf. Col. 2:12). Following Christ and united with him (cf. John 15:5), Christians can strive to be “imitators of God as beloved children, and walk in love” (Ephesians 5:1-2) by conforming their thoughts, words and actions to the “mind . . . which is yours in Christ Jesus” (Phil. 2:5), and by following his example (cf. John 13:12-16).
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