Samuel Logan Brengle emphasizes that soul-winners should not be overly anxious about finances but instead trust in God's faithfulness to provide for their needs. He encourages believers to adopt a childlike faith, similar to how he relied on his mother as a child, and to seek first the Kingdom of God, assuring them that God knows their needs. Brengle highlights the importance of faith over worry, illustrating that true soul-winners must maintain their simplicity and trust in God's provision, regardless of their financial circumstances. He cites examples from scripture and personal experiences to reinforce the message that God will supply all needs for those dedicated to winning souls. Ultimately, he calls for a focus on spiritual priorities over material concerns, reminding listeners of God's unwavering support.