When Mary comes to visit and greets Elizabeth, the child inside of her (the prophet sent to announce the coming of the Lord) leaps for joy! The arrival of this Messiah is one that sparks uncontainable joy! Mary too responds rejoicing in God her Saviour. She exalts the great and mighty things he has done - scattering the proud and toppling the mighty while exalting the lowly and satisfying the hungry!
Do you leap for joy when you think about Jesus? Does your soul magnify the Lord and your heart rejoice greatly in all that he has done? If the gospel is not a source of deep and overflowing joy - if it does not cause sheer exuberance - then we are missing something! Luke writes to Theophilus because he wants him to know the certainty of these things - but that is not just a cognitive knowing. He wants him to experientially know the joy of the Messiah's advent! How can we cultivate the uncontainable joy of Christ in our hearts?