The glorious hymn sung in the video above is William Blake’s original poem and is consequently theologically off-base. When we’ve sung it in church, we used this lyric by British composer C. Hubert Parry (1848-1918) and adapted it even further.

1 When did those feet in ancient times
walk upon Israel’s mountain green?
And did the Christ of Heaven come down,
was God in flesh both heard and seen?
And did He die to prove His love,
and did He rise again more powerful still?
And was His rule on earth started there
upon Golgotha’s tragic hill?

2 Bring me my bow of burning gold;
bring me my arrows of desire;
Bring me my spear, O clouds, unfold!
Bring me my chariots of fire!
I will not cease to spread His light.
My faith a shield, His word my sword.
‘Til Christ my Lord is crowned King,
and all the earth shall own him Lord!

Here’s Blake’s 1810 poem for context.

And did those feet in ancient time
Walk upon England’s mountains green?
And was the Holy Lamb of God
On England’s pleasant pastures seen?

And did the countenance divine
Shine forth upon our clouded hills?
And was Jerusalem builded here
Among these dark satanic mills?

Bring me my bow of burning gold!
Bring me my arrows of desire!
Bring me my spear! O clouds, unfold!
Bring me my chariot of fire!

I will not cease from mental fight,
Nor shall my sword sleep in my hand,
Till we have built Jerusalem
In England’s green and pleasant land.