As we saw in last week's sermon, David used the metaphor of a rock when speaking of a place of security and strength. The relevance to the people of the llanos who lived through an annual flooding of their land was found in the name of their church building—La Roca Viva; The Living Rock. These people know by experience the meaning of a place of security and strength.
But David also wrote of a rock in another way. I am certain that the people of the llanos could also closely relate to this illustration of the rock.
For these people of the plains of Venezuela, when the rains began and their land became inundated with flood water, and the roads at best were reduced to muddy trails, getting from place to place usually involved a good amount of walking.