sinneth not. i.e. does not practise, or continue in sin. Compare 1Jn_3:6, 1Jn_3:9. Rom_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 (Psa_121:4, Psa_121:5, &c). See also Joh_17:12. 2Th_3:3. Rev_3:10.
toucheth. Greek. haptomai. In John's writings only here and in Joh_20:17. Thirty-one times in the three other Gospels, generally in connection with the Lord's miracles. Elsewhere, 1Co_7:1. 2Co_6:17. Col_2:21.