Psalm 104:16

The trees of the LORD are full of sap; the cedars of Lebanon, which he hath planted;

The trees of the Lord are full of sap,.... Or "satiated" {s}; that is, with rain; and through it are filled with fruits. This is to be understood not only of the tallest and largest trees; which are therefore called the trees of the Lord, as high mountains are called the mountains of the Lord, Psalms 36:6 and so other things excellent in their kind: but of trees of the field and forest; so the Septuagint, Vulgate Latin, and Arabic versions; which are not planted and cultivated by man, as trees in gardens and orchards are; but are more especially under the care and cultivation of the Lord himself, and may design such as were produced by him at the creation.

the cedars of Lebanon which he hath planted; a mountain on the borders of Judea, so called from its whiteness, through the snow on it, as the Alps are; and where grew great quantities of large and spreading cedars, which were not of man's, but of the Lord's planting: these were watered and made to grow with the rain of heaven. Rauwolff {t}, who was upon this mountain in 1574, says,

"though this hill in former ages has been quite covered over with cedars, yet they are so decreased, that I could tell, says he, no more but twenty four, that stood round about in a circle; and two others, the branches whereof are quite decayed with age.''

But Thevenot {u}, who has been there since, affirms there are no more nor less than twenty three, great and small; of the largeness, thickness, and height of these trees, See Gill on "Isaiah 37:24". Saints are often compared to trees, which are planted by the Lord in Christ, and in his churches; and particularly to cedars, for their height, strength, and durableness; see Psalms 92:13, and these, through the grace of God, are full of sap and spiritual life, and are filled with the fruits of righteousness, and are often represented as planted and growing by rivers of water; see Numbers 24:6.

{s} webvy "satiantur", Vatablus, Junius & Tremellius, Piscator, Cocceius; so Musculus, Gejerus, Michaelis.
{t} Travels, par. 2. ch. 13. p. 191.
{u} Travels, par. 1. B. 2. ch. 60. p. 224.