John Gill, on Neh 6:18

“For there were many in Judea sworn to him, because he was the son in law of Sechenias the son of Area, and Johanan his son had taken to wife the daughter of Mosollam the son of Barachias.”

“For there were many in Judah sworn unto him,.... To Tobiah, who not only in a private manner corresponded with him by letters, but bound themselves by an oath to him to be true to his interest, and do as he should advise them: because he was the son in law of Shechaniah, the son of Arah; of a family that came up with Zerubbabel from the captivity, Ezr 2:5 and very probably of considerable note: and his son Johanan had taken the daughter of Meshullam the son of Berechiah; a very eminent person, concerned in building the wall, Neh 3:4.”

Imported from an open dataset — not yet checked against the printed edition.