Pastor Vann's sermon "First Things First" emphasizes how worry and anxiety have plagued humanity since ancient times, despite our desire for carefree living. Drawing from Jesus' teachings in the Sermon on the Mount, he highlights the futility of worrying about material needs and stresses the importance of prioritizing a relationship with God. In today's fast-paced world, the anxieties we face can make it feel challenging to seek God's kingdom, but when we receive the righteousness of Christ and trusting in God's provision, we will find that our worries are met with divine care and love.