'Lost Sheep' in the Bible

I wander like a lost sheep;seek Your servant,for I do not forget Your commands.

My people are lost sheep;their shepherds have led them astray,guiding them the wrong way in the mountains.They have wandered from mountain to hill;they have forgotten their resting place.

Instead, go to the lost sheep of the house of Israel.

He replied, “I was sent only to the lost sheep of the house of Israel.”

and coming home, he calls his friends and neighbors together, saying to them, ‘Rejoice with me, because I have found my lost sheep!’