on their mouth # 18_JOB_29_09  The princes refrained talking, and laid [their] hand on their mouth. ## The princes refrained talking, and laid [their] hand on their mouth. 
upon their mouth # 33_MIC_07_16  The nations shall see and be confounded at all their might_ they shall lay [their] hand upon [their] mouth, their ears shall be deaf. ## The nations shall see and be confounded at all their might: they shall lay [their] hand upon [their] mouth, their ears shall be deaf.