Mountains, and all hills. The later psalmists are great admirers of" mountains." Perhaps the fiat and monotonous Babylonian plains led them to appreciate the beauties of a landscape like that of Palestine (comp.
Psalms 83:14; Psalms 114:4, Psalms 114:6; Psalms 144:5; Psalms 147:8). Fruitful trees; rather, fruit trees; literally, trees of fruit. The Babylonian palms may have swept across the writer's remembrance; but probably the vine, the olive, and the fig, which were among the chief glories of Palestine, were in his mind principally.
And all cedars. Babylonia had had no "cedars." When the exiles returned, the beauty of the cedar broke upon them as a sort of new revelation.