Psalms 120:4

Sharp. — Better, sharpened, whetted, as if for a purpose.

Juniper. — Properly, broom. Hebrew, rothem, a plant identical with the Arabian retem and Algerian retama. (See 1 Kings 19:4.) Doctor Tristram mentions the employment of this bush for fuel. “It is ruthlessly uprooted by the Arabs, wherever it is tolerably abundant, for the manufacture of charcoal, which is considered of the finest quality, and fetches a higher price at Cairo than any other kind. Several travellers have mentioned their meeting with Bedouins employed in conveying retem charcoal to the Egyptian markets” (Nat. Hist. of the Bible, p. 360; see also Bible Educator, iv. 194). Burckhardt and Robinson also both noticed this trade.

Wonderful stories are told both by Jerome and the rabbis, how travellers, having cooked their food by fires made of the juniper wood, which they suppose to be the wood here meant, and returning a year after to the same spot, still found the embers alive.