In this verse, the angel Gabriel announces a second miracle birth. The angel has appeared to a virgin, Mary, informing her that she will conceive. Despite Mary's willingness to obey God, there are still some questions that remain. Her trust in the angel's words is unconditional, but she will ask how God will accomplish this task. The answer is that her conception will be from the Holy Spirit.
No name is more beautiful than the name of our Lord Jesus. His name is Joshua in Hebrew, which means "the Lord is salvation". Through His life and His death, Jesus paid the price for humanity's sins, that is, the sins of the past, the sins of the present, and the sins of the future. Here in Luke's Gospel, we read that the name of the Savior will be Jesus since He will save Israel from their sins.
He may have the title of Christ, as He is the anointed one of God, and His title may be Lord, as He is high and lifted up in the temple, but He shall be called Jesus. Therefore, all families will be blessed through Him, for whoever trusts in Him as Savior, whether a Jew or Gentile, male or female, old or young, black or white, slave or free, all are children of God.

Dear Heavenly Father, we thank You for Jesus and for using the nation of Israel to protect and carry the Seed of Christ through the generations. My prayer is for Israel and the whole world to recognize Jesus as their Messiah and Savior and for the promise that He will save them from their sin and unbelief. It is a blessing to know that all who believe in Your name are children of God and that I am one of them. 
In Jesus's name I pray. Amen.