Sheep had to be tended much more carefully than we generally think. In the first place, a thoughtful shepherd had always one idea before his mind,--namely, the possibility of obtaining sufficient water for his flocks. Even pasturage is less important than water, and, however tempting a district might be, no shepherd would venture to take his charge there if he were not sure of obtaining water. In a climate such as ours, this ever-pressing anxiety respecting water can scarcely be appreciated, for in hot climates not only is water scarce, but it is needed far more than in a temperate and moist climate. Thirst does its work with terrible quickness, and there are instances recorded where men have sat down and died of thirst in sight of the river which they had not strength to reach. In places therefore through which no stream runs, the wells are the great centres of pasturage, around which are to be seen vast flocks extending far in every direction. These wells are kept carefully closed by their owners, and are only opened for the use of those who are entitled to water their flocks at them. Noontide is the general time for watering the Sheep, and towards that hour all the flocks may be seen converging towards their respective wells, the shepherd at the head of each flock, and the Sheep following him. See how forcible becomes the imagery of David, the shepherd poet, "The Lord is my Shepherd; I shall not want. He maketh me to lie down in green pastures (or, in pastures of tender grass): He leadeth me beside the still waters" (Ps. xxiii. 1, 2). Here we have two of the principal duties of the good shepherd brought prominently before us,--namely, the guiding of the Sheep to green pastures and leading them to fresh water. Very many references are made in the Scriptures to the pasturage of sheep, both in a technical and a metaphorical sense; but as our space is limited, and these passages are very numerous, only one or two of each will be taken. In the story of Joseph, we find that when his father and brothers were suffering from the famine, they seem to have cared as much for their Sheep and cattle as for themselves, inasmuch as among a pastoral people the flocks and herds constitute the only wealth. So, when Joseph at last discovered himself, and his family were admitted to the favour of Pharaoh, the first request which they made was for their flocks. "Pharaoh said unto his brethren, What is your occupation? And they said unto Pharaoh, Thy servants are shepherds, both we, and also our fathers. "They said moreover unto Pharaoh, For to sojourn in the land are we come; for thy servants have no pasture for their flocks; for the famine is sore in the land of Canaan: now therefore, we pray thee, let thy servants dwell in the land of Goshen."