'Son' in the Bible

The words of Amos, who was among the sheepherders from Tekoa, which he envisioned in visions concerning Israel in the days of Uzziah king of Judah, and in the days of Jeroboam son of Joash, king of Israel, two years before the earthquake.

Then Amos replied to Amaziah, “I am not a prophet, nor am I the son of a prophet; for I am a herdsman and a grower of sycamore figs.

“Then I will turn your festivals into mourningAnd all your songs into lamentation;And I will bring sackcloth on everyone’s loinsAnd baldness on every head.And I will make it like a time of mourning for an only son,And the end of it will be like a bitter day.