At some point in our lives we must grow up. The same is true for our spiritual lives. In 1 Corinthians 14:20 Paul says, Brothers, stop thinking like children. In regard to evil be infants, but in your thinking be adults. Being like infants when it comes to evil means we should never allow ourselves to become good at it. We should mature in our relationship with God and in doing good and bringing glory to Him. If we focus on being servants for the Kingdom of God, then there will be less time and energy to do evil.