Verse 26-27 : According to Old Testament prophecy, the Messiah needs to be born of a virgin(Isaiah 7:14) and also to be from the family descendant of David (Isaiah 9:6–7).
Verse 27: Mary recognizes the favor received from God(Luke 1:46–47)
Verse 30-33 : Jesus is the Messiah: God incarnate and the Savior of the world (2 Corinthians 1:19; John 3:16). Jesus, being the Son of the Most High God, has whole divinity within him (Hebrews 1:3, Colossians 1:15-19). Jesus claimed Himself as the Son of God (Luke 22:70). Many have understood and acknowledged Christ’s divine nature before and after the crucifixion, including the Apostles (Matthew 16:16, John 1:49; 2 Corinthians 1:19) and even demons (Mark 5:7)
Verse 35: Gabriel answered that the power of the Highest shall overshadow Mary to have a child beyond human abilities. Jesus was born holy, without sin, and remained that way forever (Hebrews 4:15; 2 Corinthians 5:21, 1 John 3:5).
Verse 37: For nothing is impossible to God and he is sovereign enough to do anything (Rev 11:17, Num 11:23). No force or being can override His strength (Job 42:2)
Verse 42-45: Though John the Baptist had not yet been born, Elizabeth believed the word of the Lord given to her husband Zacharia. She realized that the Child carried by Mary is her “Lord.” Her own son is predicted to be a herald of the Messiah (Luke 1:14–17).