Though its root grows old in the earth, and its stock dies in the ground,

My bones stick to my skin and to my flesh. I have escaped by the skin of my teeth.

The voice of the nobles was hushed, and their tongue stuck to the roof of their mouth.

if my step has turned out of the way, if my heart walked after my eyes, if any defilement has stuck to my hands,

His flesh is so consumed away, that it can't be seen. His bones that were not seen stick out.

when the dust runs into a mass, and the clods of earth stick together?

They are joined one to another. They stick together, so that they can't be pulled apart.