which books did john the apostle write?
The Gospel According to John
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 John 's influence on church teachings is interwoven throughout the current Catechism of the Catholic Church ( revised 1992 ) . The Catechism cites him in eighteen sections , particularly his reflections on the purpose of prayer and the meaning of the Lord 's Prayer : 

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 John 's liturgical legacy has inspired several musical compositions . Particularly noteworthy are Sergei Rachmaninoff 's Liturgy of St. John Chrysostom , Op. 31 , composed in 1910 , one of his two major unaccompanied choral works ; Pyotr Tchaikovsky 's Liturgy of St. John Chrysostom , Op. 41 ; and Ukrainian composer Kyrylo Stetsenko 's Liturgy of St. John Chrysostom . Arvo Pärt 's Litany sets Chrysostom 's twenty @-@ four prayers , one for each hour of the day , for soli , mixed choir and orchestra . 

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 Other important treatises written by John include On the Priesthood ( written 390 / 391 , it contains in Book 1 an account of his early years and a defence of his flight from ordination by Bishop Meletios of Antioch , and then proceeds in later books to expound on his exalted understanding of the priesthood ) , Instructions to Catechumens , and On the Incomprehensibility of the Divine Nature . In addition , he wrote a series of letters to the deaconess Olympias , of which seventeen are extant . 

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 The Gospel of John can be divided into four sections : a prologue ( 1 : 1 – 18 ) , a Book of Signs ( 1 : 19 – 12 : 50 ) , a Book of Glory ( 13 : 1 – 20 : 31 ) , and an epilogue ( 21 ) . The structure is highly schematic : there are seven " signs " culminating in the raising of Lazarus ( foreshadowing the resurrection of Jesus ) , and seven " I am " sayings and discourses , culminating in Thomas 's proclamation of Jesus as " my lord and my God " — the same title ( dominus et deus ) claimed by Roman Emperor Domitian . 

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 John lived in extreme asceticism and became a hermit in about 375 ; he spent the next two years continually standing , scarcely sleeping , and committing the Bible to memory . As a consequence of these practices , his stomach and kidneys were permanently damaged and poor health forced him to return to Antioch . 
