215
A.D.
Clement of Alexandria
Patristic
c. A.D. 150–215
“And that He also calls us lambs, the Spirit by the mouth of Isaiah is an unimpeachable witness: "He will feed His flock like a shepherd, He will gather the lambs with His arm,"—using the figurative appellation of lambs, which are still more tender than sheep, to express simplicity.”