Saint Habakkuk and the Rock

Habakkuk Holding A Rock
From the "Iconostasis" Found in the
Greek Catholic Cathedral of Hajdúdorog, Hungary
Prophet and Saint Habakkuk (ha-BAK-kuk) is sometimes portrayed holding a rock.  This may stem from a few verses in his writings:

Are you not from eternity, O LORD,
my holy God, immortal?
O LORD, you have marked him
for judgment,
O Rock, you have readied him
for punishment!
- Habakkuk 1:12

"Rock" was an ancient term used to honor the power of the Lord.  You can also find this expression in Psalm 18:32 ...

Truly, who is God except the Lord?
Who but our God is the rock?

The iconostasis of the Greek Catholic Cathedral of Hajdúdorog, Hungary.
This iconostasis has 54 icons painted sometime near 1810.

In our three-year cycle of mass readings, we get one reading from the prophet Habakkuk (Year C, 27th Sunday of Ordinary Time) ... 

How long O LORD?  I cry for help
          but you do not listen!
I cry out to you, “Violence!”
          but you do not intervene.
Why do you let me see ruin;
          why must I look at misery?
Destruction and violence are before me;
          there is strife, and clamorous discord.

Then the LORD answered me and said:
          Write down the vision
Clearly upon the tablets,
          so that one can read it readily.
For the vision still has its time,
          pressed on to fulfillment, and will not disappoint;
If it delays, wait for it,
          It will surely come, it will not be late.
The rash man has no integrity;
          but the just man, because of his faith, shall live.
Wealth, too, is treacherous:
          The proud, unstable man ―

Habakkuk 1:2-3, 2:2-4

the just man, because of his faith, shall live 
~ these words are referred to in Rom. 1:17, Gal. 3:11, and Heb. 10:38. 

The Feast Day of St. Habakkuk is December 2.