'Restore' in the Bible

He told them, "Elijah is indeed coming first and will restore all things. Why, then, is it written that the Son of Man must suffer a great deal and be treated shamefully?

where their worm [that feeds on the dead] does not die, and the fire is not put out.

Salt is good. But if salt loses its taste, how can you restore its flavor? Keep on having salt among yourselves, and live in peace with one another."