John 3:16 reads 'For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life.'
The essence of understanding Christianity is really about understanding Jesus, His life, His purpose, and to do this we need to read what Jesus tells us about being 'Born Again'. But before we do that, we need to grasp 'For God so loved the world ...' means you!
When we invite Jesus into our lives we enter into eternal life and we start to see things as God sees them, which is impossible without being 'Born Again' which is a 'Spiritual Rebirth'.
Reading the book of John in the Bible will help you with understanding Christianity, about Jesus, His life and of His ministry here on earth.
Moreover, reading the book of John will lead you into a faith based on Jesus words and His works. The book of John also teaches us how to walk in faith, believe in the miracles of Jesus 10:37-38, how to understand that the glory of God is revealed to those who believe 11:40, recognise that Jesus is the only way to God 14:6-7, and how to pray and expect for greater things 14:12-14.
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