'Thirty' in the Bible
and he hath thirty sons riding on thirty ass-colts, and they have thirty cities, (they call them Havoth-Jair unto this day), which are in the land of Gilead;
and he hath thirty sons and thirty daughters, he hath sent without and thirty daughters hath brought in to his sons from without; and he judgeth Israel seven years.
and he hath forty sons, and thirty grandsons, riding on seventy ass-colts, and he judgeth Israel eight years.
and it cometh to pass when they see him, that they take thirty companions, and they are with him.
And Samson saith to them, 'Let me, I pray you, put forth to you a riddle; if ye certainly declare it to me in the seven days of the banquet, and have found it out, then I have given to you thirty linen shirts, and thirty changes of garments;
and if ye are not able to declare it to me, then ye have given to me thirty linen shirts, and thirty changes of garments.' And they say to him, 'Put forth thy riddle, and we hear it!'
And the Spirit of Jehovah prospereth over him, and he goeth down to Ashkelon, and smiteth of them thirty men, and taketh their armour, and giveth the changes to those declaring the riddle; and his anger burneth, and he goeth up to the house of his father;
And the sons of Benjamin come out to meet the people; they have been drawn away out of the city, and begin to smite some of the people -- wounded as time by time, in the highways (of which one is going up to Beth-El, and the other to Gibeah in the field), are about thirty men of Israel.
And the men of Israel turn in battle, and Benjamin hath begun to smite the wounded among the men of Israel, about thirty men, for they said, 'Surely they are utterly smitten before us, as at the first battle;