C.H. Spurgeon emphasizes the promise of Proverbs 3:24, assuring believers that they can lie down without fear and enjoy sweet sleep, even amidst life's challenges. He encourages those who are anxious or sick to find comfort in God's protection, likening it to the security of royalty. Spurgeon illustrates the peace that comes from surrendering cares and ambitions to God, allowing for true refreshment in rest. He cites examples of Peter and martyrs who found profound peace in sleep despite dire circumstances, highlighting that sweet sleep is a reflection of a sweet life filled with love and meditation.