Bible Dictionary
SOUND
In biblical poetry, “sound” can describe the inward movement or yearning of the heart, pictured as a sound from the inward parts. The expression reflects the ancient association of the bowels with deep emotion.
Biblical Usage
The expression occurs in passages describing intense inward feeling and yearning. Revised translations sometimes use “heart” or “the yearning of thy heart,” preserving the emotional sense while reducing the literal bodily imagery.