Alexander Maclaren,
Expositions of Holy Scripture
“ We are to have as our distinct aim the building up of a character 'blameless and harmless, children of God without rebuke.' The blamelessness is probably in reference to men's judgment rather than to God's, and the difficulty of coming untarnished from contact with the actions and criticisms of a crooked and perverse generation is emphasised by the very fact that such blamelessness is the first requirement for Christian conduct. ”
