Zac Poonen emphasizes that modern-day Pharisees exhibit a lack of genuine concern for lost sinners, often expressing condemnation rather than compassion. He critiques the attitude of Christians who distribute tracts without a heartfelt desire for the salvation of others, suggesting that such actions stem from a selfish motive to ease their own conscience. Poonen reminds believers that true witnessing should focus on love and the desire to lead others to Christ, rather than merely fulfilling a duty. He highlights that a lack of concern for the lost reveals a Pharisaical spirit, contrasting this with Jesus' mission to save rather than condemn.