A gentilic adjective meaning "one from Beth-shemesh" — house of the sun. Beth-shemesh was a Levitical city on the border of Judah, the site where the ark of the covenant returned from Philistine captivity. Elhanan, one of David's warriors, is called "Beth-halLachmi" in 2 Samuel 21:19, while the parallel in 1 Chronicles uses similar gentilic forms.
Beth-shemesh — the house of the sun — became famous as the place where the ark of God arrived home after seven months in Philistine territory. The Levites there looked into the ark and were struck dead (1 Samuel 6:19) — a sobering reminder that even the rejoicing of God's return carries the weight of holiness. The sun imagery in the name also carries prophetic resonance: Malachi 4:2 speaks of the "Sun of Righteousness" arising with healing in its wings. Christ is the true Beth-shimshi — the one in whom the glory of God fully dwells and shines.