NET
4 When he has brought all his own sheep out, he goes ahead of them, and the sheep follow him because they recognize his voice.
Darby
4 When he has put forth all his own, he goes before them, and the sheep follow him, because they know his voice.
KJV
4 “And when he putteth forth his own sheep, he goeth before them, and the sheep follow him: for they know his voice.”