Malbim: He had great flocks grazing in the Midbar. The towers were to take refuge from plunderers, and the pits were to give water to the flocks.

'Rashi': They are farmers. Malbim ? he wanted that there were will be grain in Eretz Yisrael, and they will not have the shame of hunger.

'Rashi': This is like "l'Chormim v'Yogvim" (Melachim II, 25:12); they guarded his animals.

'Rashi' citing Bereishis Rabah 22:6: There were two who loved the land, and did not get any benefit from it ? Uziyah and Kayin ¹ .