Yahuah is the Shepherd. This is an analogy of the Old Testament Saints being as sheep.
2 He made me to lie down in green pastures: he leads me beside the still waters.
The shepherd knows where the best grass is at different times in the year. He knows what part of the river or lake is the best water and the safest to drink.
3 He restored my soul: he leads me in the paths of righteousness for his name's sake.
Yahuah spoke us into being. He is not going to let Satan's words give us no hope. If we receive Yahuah, He will restore us because of His name. Satan cannot win by force, only if we give Satan our soul.
4 Yea, though I walk through the valley of the shadow of death, I will fear no evil: for thou art with me; your rod and your staff they comfort me.
As a sheep, sometimes we go between two cliffs, not leaving much room. As sheep, we are defenseless. As a spiritual being, we are defenseless in Death. The shepherd's staff is a speer with a hook. In Death for His name's sake, Death and Hell is pushed back.
5 Thou preparest a table before me in the presence of mine enemies: thou anointest my head with oil; my cup runneth over.
Old Testament Saints went to a special part of Hell. It was named after Abraham. A great Gulf divided Hell. A shepherd poured olive oil on the sheep's head so the insects wouldn't drive it crazy. There's no worries of Yahuah's blessings running short. On the bad side of Hell, there was not one drop of water.
6 Surely goodness and mercy shall follow me all the days of my life: and I will dwell in the house of the Lord for ever.
Old Testament Saints knew that one day they would be moved out of Hell into Yahuah's House. This happened just after Yahusha resurrected. The theif on the cross was promised Paradise with Yahusha, not Abraham's side of Hell. This theif I believe was with Yahusha the whole time. He saw Yahusha die before he did then traveled into Paradise. As for the other unrepentant theif, he saw Yahusha die and then seen Abraham's side of Hell empty.