The Catechism in Questions & Answers

115. Are there any other majestic titles of Jesus?

Yes. Holy Scripture mentions other such majestic titles of Jesus: “Immanuel”, “Servant of God”, and “Son of David”. The Hebrew name Immanuel means “God with us”. Jesus Christ bears the majestic title Immanuel because God is manifest among mankind in Him to offer them help.
The designation “Servant of God” is used in Holy Scripture for outstanding persons who stand in the service of God. When Jesus is designated as the “Servant of God”, this is a reference to His service and suffering for mankind. In the New Testament, “Son of David” is a designation for Jesus Christ. Already at the beginning of the gospel of Matthew we read: “The book of the genealogy of Jesus Christ, the Son of David, the Son of Abraham” (Matthew 1: 1). This means that the promises given to David are fulfilled in Jesus Christ (cf. 2 Samuel 7; Acts 13: 32-37).