a wolf is a non-believer, too. some verses where we are called sheep and/or Jesus is called our shepherd (ergo we are sheep).
Mt 9:36 But when He saw the multitudes, He was moved with compassion for them, because they were weary and scattered, like sheep having no shepherd.
Mt 10:16 "Behold, I send you out as sheep in the midst of wolves. Therefore be wise as serpents and harmless as doves.
Mt 18:13 And if he should find it, assuredly, I say to you, he rejoices more over that sheep than over the ninety-nine that did not go astray.
Mt 25:32 All the nations will be gathered before Him, and He will separate them one from another, as a shepherd divides his sheep from the goats.
Mt 26:31 Then Jesus said to them, "All of you will be made to stumble because of Me this night, for it is written: 'I will strike the Shepherd, And the sheep of the flock will be scattered.'
Joh 10:14 I am the good shepherd; and I know My sheep, and am known by My own.
Joh 10:15 As the Father knows Me, even so I know the Father; and I lay down My life for the sheep.
Joh 10:26 But you do not believe, because you are not of My sheep, as I said to you.
Joh 10:27My sheep hear My voice, and I know them, and they follow Me.
Heb 13:20 Now may the God of peace who brought up our Lord Jesus from the dead, that great Shepherd of the sheep, through the blood of the everlasting covenant,
1Pe 2:25 For you were like sheep going astray, but have now returned to the Shepherd and Overseer of your souls.