The sheep hear the shepherd's voice
as he calls by name those that belong to him
and leads them out.
When he has brought out all his own,
he walks in front of them;
and the sheep follow him
because they recognize his voice.
Jesus seems to be referring to sheep mingling in the same fold, but belonging to several different shepherds. Each shepherd comes to the gate and calls out his sheep by name. They follow his voice.
Jesus speaks our name in a way that shows he knows us intimately. He wants us to get to know him so intimately that we recognize his voice in our hearts as he tells us of his love.