sinneth not. i.e. does not practise, or continue in sin. Compare 1Jn 3:6, 1 John 3:9; Romans 6:1-12. App-128.
He that, &c. This refers to the Lord. As the Jehovah of the O.T. He was the keeper of Israel (Psalms 121:4; Psalms 121:5, &c). See also John 17:12. 2 Thessalonians 3:3.Revelation 3:10.
himself. Most texts read "him".
wicked one. App-128. Compare 1 John 2:13 1 John 2:14. 1 John 3:12.
toucheth. Greek. haptomai. In John's writings only here and in John 20:17. Thirty-one times in the three other Gospels, generally in connection with the Lord's miracles. Elsewhere, 1 Corinthians 7:1; 2 Corinthians 6:17; Colossians 2:21.