'Thirty' in the Bible

And he had thirty sons who would ride on thirty donkeys, and they had thirty towns that [are] in the land of Gilead that they called Havvoth Jair until this day.

He had thirty sons. He gave his thirty daughters away in marriage outside [his clan] and brought in from outside thirty young women for his sons. He judged Israel for seven years.

He had forty sons and thirty grandsons that rode on seventy male donkeys. He judged Israel for eight years.

When they saw him, they took thirty companions, and they were with him.

And Samson said to them, "Let me tell you a riddle. If you can fully explain it to me within the seven days of the feast, and find [it out], I will give to you thirty linen garments and thirty festal garments.

But if you are unable to explain it to me, you must give me thirty linen garments and thirty festal garments." So they said to him, "Tell your riddle; let us hear it."

And the Spirit of Yahweh rushed on him, and he went down to Ashkelon. He killed thirty men from them, and he took their belongings, and he gave festal garments to the ones that explained the riddle. {He was angry}, and he went up to his father's house.

The descendants of Benjamin went out to meet the troops, and they lured [them] away from the city and began to inflict casualties on the troops as before, on the main road, one of which goes up [to] Bethel, the other to Gibeah; [and] in the field [there were] about thirty men of Israel.

And the men of Israel turned in the battle, and Benjamin began to inflict casualties on about thirty men of Israel because they thought, "They will be completely defeated before us as in the first battle."