“A lamp for My anointed one”
There I will make a horn grow for David; I have prepared a lamp for My anointed one. (Psalm 132:17 BSB)
What it sounds like today
A poetic mention of a lamp and a horn.
The cultural key
The 'lamp' here is not a household light but a standing royal idiom. In the language of the monarchy, to keep a man's 'lamp' burning meant to preserve his dynasty, his line of descendants continuing on the throne, so that his 'light' was never snuffed out. God repeatedly frames the Davidic promise this way: He spares Jerusalem 'so that David My servant may always have a lamp before Me' (1 Kings 11:36), and gives his heirs 'a lamp in Jerusalem' by raising up a son after him (1 Kings 15:4). So 'I have prepared a lamp for My anointed one' is a pledge that David's royal house will endure, a promise that ultimately points to the Messiah, David's greater Son. (The paired image, making 'a horn grow for David,' likewise signifies rising strength.) A modern reader sees a decorative lamp; the first hearer heard a covenant guarantee of an unbroken dynasty.
Recovered meaning
'A lamp for My anointed' is royal idiom for an enduring dynasty: God pledges that David's line will never be extinguished but will keep burning, a promise reaching toward the Messiah. The 'horn' beside it signifies growing strength.