Commentaries:
A sheep pen often held several flocks, with each flock having its own shepherd. When the time came to take his flock to its pasture, each shepherd separated his sheep from the others by making a unique call. Instead of driving them, he led them, and they followed him as one unit. The shepherd always went before them to guide them to the most beneficial pasture and to protect them from danger.
Jesus' references to the sheep are personal: "His own sheep" (verse 4), "My sheep" (verse 14), and "other sheep I have" (verse 16). Everyone is owned by the Creator God. The Father is the "Author of Creation" (Isaiah 40:28; 43:15), and the One who later became known as the Son, Jesus Christ, is the Word, through whom Creation was brought into existence and the work done (Psalm 102:25; John 1:1-3; Colossians 1:16-19; Hebrews 1:2, 10; Revelation 4:11). As such, His sheep are very familiar to Him and bear the mark of ownership—unconditional obedience and submission.
Martin G. Collins
Parable of the Good Shepherd (Part One)
Other Forerunner Commentary entries containing John 10:16:
Song of Solomon 1:1
Matthew 15:21-28
Matthew 15:24
Mark 7:24-30