en_tn_condensed/luk/01/69.md

He has raised up a horn of salvation for us in the house of his servant David

An animal's horn is a symbol of the animal's power to defend itself. The Bible often calls a powerful person a horn. Here, to raise up someone means to bring him into existence or to enable him to act. Alternate translation: "He has brought to us someone in the house of his servant David who has power to save us"

in the house of his servant David

David's "house" here represents his family, specifically, his descendants. Alternate translation: "in the family of his servant David" or "who is a descendant of his servant David"