Luke 15:4

What man of you, having an hundred sheep, if he 1ose one of them, doth not leave the ninety and nine in the wilderness, and go after that which is lost, until he find it? For a sheep is a simple and foolish animal, which, in search of pasture, easily loses its way and wanders from the fold, and when once astray is unable to return. So that there is need of a shepherd to go forth and seek it.

So we, by reason of our sinful lusts, were as wandering sheep, treading the path which led to perdition, without a thought of God or of heaven, or of the salvation of our souls. Wherefore Christ came down from heaven to seek us, and to lead us back from the way of destruction to that which leadeth to eternal life. So we read, "All we like sheep have gone astray; we have turned every one to his own way; and the Lord hath laid on Him the iniquity of us all," Isaiah 53:6; and again, "Ye were as sheep going astray; but are now returned unto the Shepherd and Bishop of your souls." 1 Peter 2:25.