Built towers in the desert - For the defense of his flocks, and his shepherds and husbandmen.

And in Carmel - Calmet remarks that there were two Carmels in Judea: one in the tribe of Judah, where Nabal lived, and the other on the coast of the Mediterranean Sea, near to Kishon; and both fertile in vines.

He loved husbandry - This is a perfection in a king: on husbandry every state depends. Let their trade or commerce be what they may, there can be no true national prosperity if agriculture do not prosper; for the king himself is served by the field. When, therefore, the king of a country encourages agriculture, an emulation is excited among his subjects; the science is cultivated; and the earth yields its proper increase; then, should trade and commerce fail, the people cannot be reduced to wretchedness, because there is plenty of bread.

an army [heb] the power of an army
three hundred

2 Chronicles 11:1 And when Rehoboam was come to Jerusalem, he gathered of the house of Judah and Benjamin an hundred and fourscore thousand chosen men...

2 Chronicles 13:3 And Abijah set the battle in array with an army of valiant men of war, even four hundred thousand chosen men...

2 Chronicles 14:8 And Asa had an army of men that bore targets and spears, out of Judah three hundred thousand; and out of Benjamin...

2 Chronicles 17:14-19 And these are the numbers of them according to the house of their fathers: Of Judah, the captains of thousands; Adnah the chief...

Of Preparation.
That a Christian ought necessarily to prepare himself before he presume to be a partaker of the holy communion, may evidently appear by five reasons:-- First, Because it is God's commandment; for if he commanded, under the pain of death, that none uncircumcised should eat the paschal lamb (Exod. xii. 48), nor any circumcised under four days preparation, how much greater preparation does he require of him that comes to receive the sacrament of his body and blood? which, as it succeeds, so doth it …
Lewis Bayly—The Practice of Piety