'Son' in the Bible

In the eighth month, in the second year of Darius, the word of the Lord came to Zechariah, the son of Berechiah, the son of Iddo the prophet, saying,

On the twenty-fourth day of the eleventh month, the month Shebat, in the second year of Darius, the word of the Lord came to Zechariah, the son of Berechiah, the son of Iddo the prophet, saying,

Take the offerings of those who went away as prisoners, from Heldai, Tobijah, and Jedaiah, and from the family of Josiah, the son of Zephaniah, who have come from Babylon;

And the crown will be for grace to Heldai and Tobijah and Jedaiah and the son of Zephaniah, to keep their memory living in the house of the Lord.

And I will send down on the family of David and on the people of Jerusalem the spirit of grace and of prayer; and their eyes will be turned to the one who was wounded by their hands: and they will be weeping for him as for an only son, and their grief for him will be bitter, like the grief of one sorrowing for his oldest son.