Child of God
(A), in the Anglican and Catholic Church, means one who has been baptised; others consider the phrase to mean one converted by special grace and adopted into the holy family of God's Church.
“In my baptism, wherein I was made a member of Christ, the child of God, and an inheritor of the Kingdom of Heaven.” —Church Catechism.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894
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