'Years' in the Bible

Now these are the names of the sons of Levi, according to their records: Gershon, Kohath, and Merari. (The length of Levi's life was 137 years.)

The sons of Kohath were Amram, Izhar, Hebron, and Uzziel. (The length of Kohath's life was 133 years.)

Amram married his father's sister Jochebed, and she bore him Aaron and Moses. (The length of Amram's life was 137 years.)

Now Moses was eighty years old and Aaron was eighty-three years old when they spoke to Pharaoh.

Now the length of time the Israelites lived in Egypt was 430 years.

At the end of the 430 years, on the very day, all the regiments of the Lord went out of the land of Egypt.

Now the Israelites ate manna forty years, until they came to a land that was inhabited; they ate manna until they came to the border of the land of Canaan.

"If you buy a Hebrew servant, he is to serve you for six years, but in the seventh year he will go out free without paying anything.

"For six years you are to sow your land and gather in its produce.

Everyone who crosses over to those numbered, from twenty years old and up, is to pay an offering to the Lord.

one beka per person, that is, a half shekel, according to the sanctuary shekel, for everyone who crossed over to those numbered, from twenty years old or older, 603,550 in all.