The parable of the good shepherd represents the responsibility of every minister and of every Christian who has accepted a position as teacher of the children and youth. The one that has strayed from the fold is not followed with harsh words and a whip but with winning invitations to return. The ninety and nine that had not strayed do not call for the sympathy and tender, pitying love of the shepherd. But the shepherd follows the sheep and lambs that have caused him the greatest anxiety and have engrossed his sympathies most deeply. He leaves the rest of the sheep, and his whole energies are taxed to find the one that is lost.
Counsels to Parents, Teachers, and Students, p.198.