'Inner' in the Bible

For there is not [anything] reliable in his mouth; their inner part [is] destruction. Their throat is an open grave; [with] their tongue they speak deceit.

Hear the voice of my supplications when I cry to you for help, when I lift up my hands toward your holy inner sanctuary.

{They carefully plot} injustices [saying], "We have perfected {the perfect plot}!" Both [the] {inner thought} and heart of man [are] deep.