Passage
A sepulchre opened <FI>is<Fi> their throat; with their tongues they used deceit; poison of asps <FI>is<Fi> under their lips.
A sepulchre opened <FI>is<Fi> their throat; with their tongues they used deceit; poison of asps <FI>is<Fi> under their lips.
Romans 3:11 There is none who is understanding, there is none who is seeking after God.
Romans 3:12 All did go out of the way, together they became unprofitable, there is none doing good, there is not even one.
Romans 3:13 A sepulchre opened <FI>is<Fi> their throat; with their tongues they used deceit; poison of asps <FI>is<Fi> under their lips.
Romans 3:14 Whose mouth is full of cursing and bitterness.
Romans 3:15 Swift <FI>are<Fi> their feet to shed blood.
The verse centers on "sepulchre", "opened", "throat", "tongues", "used", "deceit", "poison", and "asps". It is saying that the verse draws attention to "sepulchre" and "opened", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 12's "All did go out of the way..." into verse 14's "Whose mouth is full of cursing and...", so "sepulchre" and "opened" belong inside that flow. In Romans context, the local focus is righteousness by faith, union with Christ, life in the Spirit, and God's covenant faithfulness.
A plain takeaway is to answer the verse's own emphasis on "sepulchre" and "opened" with trust shaped by these words, not by a vague optimism outside the passage.