God is with us

Matthew 1:18-25
God told Joseph what is matter about Mary, so he did what the angel of the Lord had commanded him and took Mary home as his wife.
Jesus: save his people from their sins.
Immanuel: God is with us.
Luke's fuller account of the birth of Jesus focuses o Mary; Matthew's on Joseph. Joseph is a descendant of David and it is his naming/adoption of Jesus that makes Jesus officially a 'son of David' as the Scriptures require.
V 23 Matthew gives us the first of five Old Testament quotations used in Chapter 1 and 2 o show that Jesus fulfills all that the prophets foretold.
Here Isaiah's words take on a new dimension: in Jesus (Hebrew 'Joshua', a name the means 'God saves') God is actually here in our world with us (the meaning of the name 'Immanuel')
V25 The implication is that after the birth Mary and Joseph lived a normal married life.
Why?
Joseph is a righteous man and a obedience man to the Lord.
Jesus is the Lord came from heaven and be with us.
How?
God's love show to us through Jesus Christ.