The central message of this sermon is that longing and waiting are essential components of the human experience, particularly in relation to our relationship with God. The teacher wants listeners to understand that these feelings of yearning and desire are not weaknesses, but rather a natural expression of our deep-seated need for connection with God and resolution of life's difficulties. By examining the 400-year period between the Old Testament and New Testament, where the people of Israel waited patiently for the promised Savior, the sermon highlights the importance of trusting in God's timing and sovereignty. The teacher emphasizes that God often calls His people to wait, not because He is unable or unwilling to act, but rather because He wants us to deepen our trust and dependence on Him. Ultimately, the sermon encourages listeners to approach their own longings and desires with a sense of expectation, knowing that God will fulfill them in His perfect time.