'Old' in the Bible

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

And Moses said, We will go with our young and with our old, with our sons and with our daughters; with our flocks and with our herds will we go; for we have a feast of Jehovah.

Every one that passeth among those that are numbered, from twenty years old and above, shall give the heave-offering of Jehovah.

a bekah the head half a shekel, according to the shekel of the sanctuary, for every one that passed the numbering from twenty years old and upward, of the six hundred and three thousand five hundred and fifty.