en_tn_condensed/luk/01/69.md

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

The horn of an animal is a symbol of its power to defend itself. To raise up here is to bring into existence or to enable to act. The Messiah is spoken of as if he were a horn with the power to save Israel. Alternate translation: "He has brought to us someone who is in the house of his servant David with the power to save us" (See: rc://en/ta/man/jit/figs-metaphor)

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" (See: rc://en/ta/man/jit/figs-metonymy)