To kept by the power of God through faith (1 Peter 1:5) means that one hears what God says (Romans 10:17), believes, trusts, and has conviction concerning that which the Lord said (Hebrews 11:6, 1), walks by faith, that is, the Word of God controls the thoughts and actions of the one who believe (2 Corinthians 5:7), then with a penitent attitude (1 John 1:7-9) – there is NOTHING Satan can do to penetrate the Lord’s protective barrier around the saint. The only time Satan will penetrate is when the Christian gets lazy and puts down some part of his (her) armor (Ephesians 6:13-17). A Christians who lives with the protective barrier of God surrounding is a Christian who has won the victory that the Lord already went on ahead to gain.