In Gbaya, the notion of the agony of the heart (“walls of my heart”) in Jeremiah 4:19 is emphasized with baram-baram, an ideophone used to describe the heartbeat for emotional reasons, and a wildly beating heart is emphasized with mgbut-mgbut, an ideophone used to describe the pounding feeling inside one’s chest.

Ideophones are a class of sound symbolic words expressing human sensation that are used as literary devices in many African languages. (Source: Philip Noss)

See also thrust his hands into / inmost being yearned and heart trembles.