Rock of Ages

1 Rock of Ages, cleft for me, 

let me hide myself in thee; 

let the water and the blood, 

from thy wounded side which flowed, 

be of sin the double cure; 

save from wrath and make me pure. 

2 Not the labors of my hands 

can fulfill thy law's demands; 

could my zeal no respite know, 

could my tears forever flow, 

all for sin could not atone; 

thou must save, and thou alone. 

3 Nothing in my hand I bring, 

simply to the cross I cling; 

naked, come to thee for dress; 

helpless, look to thee for grace; 

foul, I to the fountain fly; 

wash me, Savior, or I die. 

4 While I draw this fleeting breath, 

when mine eyes shall close in death, 

when I soar to worlds unknown, 

see thee on thy judgment throne, 

Rock of Ages, cleft for me, 

let me hide myself in thee. 

From Wikipedia:

Rock of Ages is a popular Christian hymn by the Reverend Augustus Toplady written in 1763 and first published in The Gospel Magazine in 1775.

Traditionally, it is held that Toplady drew his inspiration from an incident in the gorge of Burrington Combe in the Mendip Hills in England. Toplady, a preacher in the nearby village of Blagdon, was travelling along the gorge when he was caught in a storm. Finding shelter in a gap in the gorge, he was struck by the title and scribbled down the initial lyrics.