“On that day,

Yahweh will shield

The inhabitants

Of Jerusalem.

Thus,

The feeblest among them,

On that day,

Shall be like David.

The house of David

Shall be like God.

The house of David

Shall be like the angel of Yahweh,

At their head.

On that day,

I will seek to destroy

All the nations

That come against Jerusalem.”

On this coming day, Yahweh was going to shield Jerusalem from all attacks.  The weakest among them would be like King David.  The house of David would be like God, with the angel of Yahweh leading it.  Yahweh was going to destroy every country that tried to go against Jerusalem.  This was a very strong defense of the city of Jerusalem and the Davidic royalty, on the day of Yahweh.