Cross reference
Jeremiah 5:16
16 Its quiver `is' as an open sepulchre, All of them -- mighty ones.
Isaiah 5:28
28 Whose arrows `are' sharp, and all its bows bent, Hoofs of its horses as flint have been reckoned, And its wheels as a hurricane!
Psalms 5:9
9 For there is no stability in their mouth. Their heart `is' mischiefs, An open grave `is' their throat, Their tongue they make smooth.
Romans 3:13
13 A sepulchre opened `is' their throat; with their tongues they used deceit; poison of asps `is' under their lips.