Albert Barnes Commentary Nehemiah 10:1

"Now those that sealed were: Nehemiah the governor, the son of Hacaliah, and Zedekiah," — Nehemiah 10:1 (ASV)

The “Zidkijah” of this passage is probably the same as “Zadok” (Nehemiah 13:13). “Zadok” is expressly called “the scribe,” and it was probably as the scribe who drew up the document that “Zidkijah” signed it immediately after Nehemiah.