'Trees' in the Bible

I was attentive that night and saw a man seated on a red horse that stood among some myrtle trees in the ravine. Behind him were red, sorrel, and white horses.

Then the man standing among the myrtle trees spoke up and said, "These are the ones whom the Lord has sent to walk about on the earth."

The riders then agreed with the angel of the Lord, who was standing among the myrtle trees, "We have been walking about on the earth, and now everything is at rest and quiet."

There are also two olive trees beside it, one on the right of the receptacle and the other on the left."

Next I asked the messenger, "What are these two olive trees on the right and the left of the menorah?"

Before he could reply I asked again, "What are these two extensions of the olive trees, which are emptying out the golden oil through the two golden pipes?"

Howl, fir tree, because the cedar has fallen; the majestic trees have been destroyed. Howl, oaks of Bashan, because the impenetrable forest has fallen.