“Yahweh sends out from Zion
Your mighty scepter.
Rule in the midst of your foes!
Your people will offer themselves willingly,
On the day you lead your forces,
On the holy mountains.
From the womb of the morning,
Like dew,
Your youth will come to you.”
This is an extremely difficult passage to understand from the Hebrew text. It appears that Yahweh sends out the mighty scepter of David from Mount Zion in Jerusalem. King David would then rule in the middle of his foes and enemies. The people would offer themselves to David and be part of his armed forces. They would set out from the holy mountains. Somehow, David would regain his youth like the dew in the early morning.
Eugene Finnegan Bible Project 