'Thirty' in the Bible

Adam lived one hundred thirty years, and became the father of a son in his own likeness, after his image, and named him Seth.

All the days that Adam lived were nine hundred thirty years, then he died.

Mahalalel lived after he became the father of Jared eight hundred thirty years, and became the father of sons and daughters.

This is how you shall make it. The length of the ship will be three hundred cubits, its breadth fifty cubits, and its height thirty cubits.

Shelah lived thirty years, and became the father of Eber:

Eber lived four hundred thirty years after he became the father of Peleg, and became the father of sons and daughters.

Peleg lived thirty years, and became the father of Reu.

Serug lived thirty years, and became the father of Nahor.

He said, "Oh don't let the Lord be angry, and I will speak. What if there are thirty found there?" He said, "I will not do it, if I find thirty there."

thirty milk camels and their colts, forty cows, ten bulls, twenty female donkeys and ten foals.

Joseph was thirty years old when he stood before Pharaoh king of Egypt. Joseph went out from the presence of Pharaoh, and went throughout all the land of Egypt.

Jacob said to Pharaoh, "The days of the years of my pilgrimage are one hundred thirty years. Few and evil have been the days of the years of my life, and they have not attained to the days of the years of the life of my fathers in the days of their pilgrimage."