When God removes an infirmity or gives a blessing, He also gives a responsibility to follow through, using the blessing to overcome and glorify God.
John emphasizes the reality of Jesus as the Logos (a word revealing hidden thought), the manifestation of God in the flesh, emphasizing His preexistence and divinity.
Controversy aside, what is the true meaning of I John 5:7-8? Ironically, these verses reveal something quite opposed to 'one God existing in three Persons.'
Christ provides a model of how to live a godly life in the flesh, living life the way God lives it. Using His light, we can navigate our way in this world.
John identifies Christ as co-eternal with the Father, equal in character, but subordinate in authority. Christ's sonship was unique; He was the 'only Begotten Son.'