Habakkuk 2:1-4 (KJV) I will stand upon my watch, and set me upon the tower, and will watch to see what he will say unto me, and what I shall answer when I am reproved.
And the LORD answered me, and said, Write the vision, and make it plain upon tables, that he may run that readeth it.
For the vision is yet for an appointed time, but at the end it shall speak, and not lie: though it tarry, wait for it; because it will surely come, it will not tarry.
Behold, his soul which is lifted up is not upright in him: but the just shall live by his faith.

This quote is by Ellen white
Prophets and Kings
Pages 386,387
The just shall live by faith

The faith that strengthens Habakkuk and all the holy and the just in though days of deep trial and same faith that sustain God's people today. In the darkest hour and circumstance and most forbidding, the Christian be liver may keep his soul stayed upon the source of all light and power. Day by day, through faith in God His hope and courage may be renewed.