'Thirty' in the Bible

And Adam lived a hundred and thirty years, and begot a son in his likeness, after his image, and called his name Seth.

And all the days of Adam that he lived were nine hundred and thirty years; and he died.

And Mahalaleel lived after he had begotten Jared eight hundred and thirty years, and begot sons and daughters.

And thus shalt thou make it: let the length of the ark be three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits.

And Shelah lived thirty years, and begot Eber.

And Eber lived after he had begotten Peleg four hundred and thirty years, and begot sons and daughters.

And Peleg lived thirty years, and begot Reu.

And Serug lived thirty years, and begot Nahor.

And he said, Oh, let not the Lord be angry that I speak! Perhaps there may be thirty found there. And he said, I will not do it if I find thirty there.

thirty milch camels with their colts; forty kine, and ten bulls; twenty she-asses, and ten young asses.

And Joseph was thirty years old when he stood before Pharaoh king of Egypt. And Joseph went out from Pharaoh, and passed through the whole land of Egypt.

And Jacob said to Pharaoh, The days of the years of my sojourning are a hundred and thirty years. Few and evil have been the days of the years of my life, and they do not attain to the days of the years of the life of my fathers, in the days of their sojourning.