It is important to see that the shepherding ministry of Jesus is always linked to his death. It is seen as a subsequent event. We now have a High Priest at the Father's right hand who makes intercession for us!
Notice, then, the placement of Psalm 23. It comes immediately after psalm 22 that outlines the sacrificial death of God's great prophet. Psalm 23 is the Psalm outlining the priestly ministry of Jesus Christ. Why then should I fear at all seeing I have such a great High Priest shepherding me daily. YHWH Rohi! The LORD is my shepherd! He is my great High Priest!
"Seeing then that we have a great high priest, that is passed into the heavens, Jesus the Son of God, let us hold fast our profession." Hebrews 4:14