'Son' in the Bible

In the eighth month of the second year of the reign of Darius, this message from the LORD came to Berechiah's son Zechariah, the grandson of Iddo the prophet:

On the twenty-fourth day of the eleventh month (the month Shebat) in the second year of the reign of Darius, this message from the LORD came to Berechiah's son Zechariah, the grandson of Iddo the prophet:

"Go take up an offering from those who came out of the Babylonian exile, that is, from Heldai, from Tobijah, and from Jedaiah. Go along with them today into the house of Zephaniah's son Josiah, who returned from Babylon.

Take silver and gold and fashion crowns to set upon the head of Joshua son of Johozadak, the High Priest.

The crowns will go to Helem, to Tobijah, to Jedaiah, and to Zephaniah's son Hen, as a memorial in the Temple of the LORD.

Then they will mourn for him, as for an only son. They will grieve bitterly for him, as for a firstborn son. At that time, Jerusalem will mourn deeply, like the mourning about Hadad-rimmon that took place in the plain of Megiddo.