'Sheep' in the Bible

"Which one of you, if he has a hundred sheep and loses one of them, would not leave the ninety-nine in the open pasture and go look for the one that is lost until he finds it?

Returning home, he calls together his friends and neighbors, telling them, 'Rejoice with me, because I have found my sheep that was lost.'

"Would any one of you say to your slave who comes in from the field after plowing or shepherding sheep, 'Come at once and sit down for a meal'?