King Durin III (Peter Mullan) seems tempted by the offer, but he asks Elrond why the dwarves should trust any elf.

“You should not,” Elrond responds. “But you can trust me. For I am no common elf, but Elrond Half-elven. And I see in elves that which they cannot see in themselves. That is why I stand before you now, alone, pleading for you to save my people.”

Source: https://www.distractify.com/p/is-elrond-half-elf