Luke is the first book in a two part series, the second being Acts. It is named after it’s author, Luke, who was a physician from Antioch and a companion of the Apostle Paul. He wrote during the first century AD, probably the early 60s, and was primarily addressing Gentile Christians.
The book of Luke presents several key themes:
God’s sovereign rule over history.
The arrival and actual presence of the kingdom of God.
The coming and indwelling of the Holy Spirit upon Jesus and his followers.
The great reversal taking place in the world.
Believers are to live a life of prayer and practice good stewardship with their possessions.
The danger of riches.
And he likely wrote with these four goals in mind:
To assure his readers of the certainty of what they had been taught
To help his readers understand how Israel’s rejection of Jesus and the Gentiles’ entrance into the kingdom of God are in accord with the divine plan.
To clarify for his readers Jesus’ teaching concerning the end times.
To emphasize that his readers need not fear Rome.
Themes, goals, and facts taken from the ESV Study Bible.