'Age' in the Bible

and say to the king, 'Let the king to the age live! wherefore should not my face be sad, when the city, the place of the graves of my fathers, is a waste, and its gates have been consumed with fire?'

And the Levites say, even Jeshua, and Kadmiel, Bani, Hashabniah, Sherebiah, Hodijah, Shebaniah, Pethahiah, 'Rise, bless Jehovah your God, from the age unto the age, and they bless the name of Thine honour that is exalted above all blessing and praise.

On that day there was read in the book of Moses, in the ears of the people, and it hath been found written in it that an Ammonite and Moabite doth not come into the assembly of God -- unto the age,