"The sheep are not worried, because they blindly trust that the shepherd will always take care of them and protect them from attacks.
Jesus" 

Why does the Lord Jesus compare Himself to a shepherd?

“I AM the good Shepherd" 

I know my sheep and my sheep know me. Just as the Father knows me and I know the Father. I give my life for the sheep. I also have other sheep, which do not belong to this fold. I must bring them into this flock too, and they will listen to my voice. And eventually there will be only one flock, with one Shepherd.” 

Now that we know this, it is easier to understand why the Lord Jesus calls Himself a shepherd. When you know Him well and listen to His voice, you will be safe. He will take care of you and protect you. We humans – who are compared to sheep – know the Lord Jesus as our Shepherd just as well as Jesus knows His Father. And what is so beautiful is that Jesus also says that He gives His life for His sheep.  And that is something He literally did by dying on the cross for us. He gave His life that we might live. So when you choose to let Jesus be the Shepherd of your life, you know that you can trust that He has your best interests at heart. You don’t have to be afraid; no matter what happens in your life… He will protect you.