The noun θυμιατήριον designates equipment for burning incense—either a portable censer (hand-held incense burner) or an incense altar. Classical sources use it for censers in temple ritual and vessels for fumigation. Hebrews 9:4 describes the furnishings of the tabernacle's Holy of Holies, listing the "golden censer" or "golden altar of incense" alongside the ark. Whether this refers to a portable censer or the incense altar (normally positioned outside the veil) has been debated. The translations split: English "altar of incense," Spanish/French "encensoir/incensario" (censer), German "Rauchfass" (censer), reflecting the lexical ambiguity.