De Agricultura

Thus, indeed, being a shepherd is a good thing, so that it is justly attributed, not only to kings, and to wise men, and to souls who are perfectly purified, but also to God, the ruler of all things; and he who confirms this is not any ordinary person, but a prophet, whom it is good to believe, he namely who wrote the psalms; for he speaks thus, "The Lord is my shepherd, and he shall cause me to lack nothing;" [*](Psalm xxiii. 1. )