Charles Ellicott Commentary Ezekiel 27:5

"They have made all thy planks of fir-trees from Senir; they have taken a cedar from Lebanon to make a mast for thee." — Ezekiel 27:5 (ASV)

Ship boards. —Planking for the sides of the ship. The word in the original is in the dual, with reference to its two sides.

Senir was the Amorite name of Hermon, or Antilebanon, called by the Sidonians Sirion (Deuteronomy 3:9). Ezekiel wished to use a foreign name, and the latter may at this time have become obsolete. The timber brought from there for the ship’s planking, and called fir, was the same as that furnished by Hiram to Solomon for the floor of the Temple (1 Kings 6:15), and may have been either “fir” (spruce?) or cypress.

The Scripture names of trees are not always well identified. Both were esteemed among the ancients for shipbuilding, especially the cypress, on account of its lightness, durability, and freedom from the attacks of worms.