Isaiah 41:19

(19) I will plant in the wilderness.—A picture as of the Paradise of God (Isaiah 51:3), with its groves of stately trees, completes the vision of the future. The two groups of four and three, making up the symbolic seven, may probably have a mystic meaning. The “shittah” is the acacia, the “oil tree” the wild olive, as distinguished from the cultivated (Romans 11:17), the “fir tree” is probably the cypress, the “pine” stands for the plane, always—as in the opening of Plato’s Phœdrus, and the story of Xerxes in Herod. vii. 31,—the glory of Eastern scenery and the “box-tree” is perhaps the larch, or a variety of cedar. The “myrtle” does not appear elsewhere in the Old Testament till after the exile (Nehemiah 8:15; Zechariah 1:8; Zechariah 1:10-11), but then it appears as if indigenous. It supplies the proper name Hadassah (Esther) in Esther 2:7.