1 Peter 2:24-25 - He himself (Jesus) bore our sins in his body on a tree, that we might die to sin and live to righteousness. By his wounds, you were healed. For you were straying like sheep, but you have now returned to the Shepherd and Overseer of your souls.
Sheep are known for their propensity to stray. Sheep have been known to wander from the herd and lead themselves to the edge of a cliff or to be found dead alone in the middle of nowhere. This is the state in which we were in without Christ. We were wandering around, lost and without hope. It was for this reason that Christ died on the cross. Our response is that we should get rid of our old and sinful way of living and turn and live in obedience to Christ.We are no longer characterized by our old sinful selves. Rather, by the wounding of Christ on the cross, we are spiritually, healed. It is because of this healing relationship that we have been brought back to God, the Shepherd and Overseer of our souls.
The text says that we were straying like sheep. That no longer characterizes the believer. However, God continues to Shepherd us. He continues to guide and lead us. Unfortunately, we sometimes desire to revert back to "sheep mentality". We like to think of ourselves as wandering, without hope instead of realizing the change that Christ made for us on the cross. We have been healed. The effects of our sins have been healed. Our relationship with God has been healed. Our response is to get ride of the old way of thinking and living and to accept and practice the new that has been established in Christ. We to rely on God as our Shepherd and allow Him to be Overseer of our souls. When we do, we do not have to worry about straying.