en_tn/pro/30/14.md

There is a generation whose teeth are swords and whose jawbones are knives, so they may devour the poor ... and the needy

This is a metaphor for being cruel and treating poor and needy people cruelly, like an animal with sharp teeth that tears apart other animals and eats them. The sharp teeth may be a metaphor specifically for cruel words. Devouring the poor and needy may be specifically about taking poor people's possessions, leaving them even poorer. (See: rc://en/ta/man/jit/figs-metaphor)

There is a generation whose teeth

"Some people's teeth" or "Stay away from people whose teeth." See how you translated similar words in verse 11.

jawbones

the bones of the face where teeth grow