en_tn/neh/13/04.md

He was related to Tobiah.

The context clearly shows that "he" refers to Eliashib. AT: "He was allied with Tobiah" or "He was closely associated with Tobiah."

Tobiah

He was the sworn enemy of these returning people.

Eliashib prepared for Tobiah a large storeroom

Eliashib prepared a large storeroom for Tobiah in an area that had always been purified to store offering supplies.

gatekeepers

See how you translated this in Nehemiah 7:1