Who is Jesus? The good shepherd?
John 10:14-15 I am the good shepherd. I know my own and my own know me, just as the Father knows me and I know the Father; and I lay down my life for the sheep.
You don’t need to know them, you just need to know Him. Many Christians spend a lot of time on learning to discern spirits so that when the time comes they’ll know who it is that speaks to them. The best thing we can do though, is learn to hear the voice of Jesus.
The Good Shepherd said that those who are of His flock know His voice, that all the rest are strangers and we’ll know not to listen to them. The more time spent with Jesus, the more we’ll know His voice. We won’t need to practice knowing other voices so as not to listen to them, we just won’t listen to them because they’re not Him.
Only one died for His flock. Jesus laid down His life for us, the Son of God sacrificing Himself that those who belong to Him would know life. He laid down His life on His own authority and He took it back up on His own authority. That’s a voice worth listening to.