My thanks to everyone for sharing your thoughts and insights. There are many references to God's people being likened to sheep in the Bible. Here are just a few of them:
"It is written, For he is our God; and we are the people of his pasture, and the sheep of his hand. To day if ye will hear his voice," Psalms 95:7
"He saith to him again the second time, Simon, son of Jonas, lovest thou me? He saith unto him, Yea, Lord; thou knowest that I love thee. He saith unto him, Feed my sheep." John 21:16
Jesus said, "My sheep hear my voice, and I know them, and they follow me:" John 10:27.
"As it is written, For thy sake we are killed all the day long; we are accounted as sheep for the slaughter." Romans 8:36