A.B. Simpson emphasizes the importance of prioritizing the Kingdom of God above all else, warning that even good desires can distract us from our true purpose in Him. He encourages believers to commit their desires to God while maintaining a focus on His will and glory, rather than seeking blessings for selfish reasons. By delighting in the Lord, we can trust that He will fulfill our heart's desires as we align them with His purpose. Simpson reminds us that all things will be added to us when we seek God first, reinforcing the idea that true fulfillment comes from being in Christ. He concludes with a prayer for a heart that seeks to please God above all other blessings.