'Length' in the Bible

Life he hath asked from Thee, Thou hast given to him -- length of days, Age-during -- and for ever.

Only -- goodness and kindness pursue me, All the days of my life, And my dwelling is in the house of Jehovah, For a length of days!

With length of days I satisfy him, And I cause him to look on My salvation!

Thy testimonies have been very stedfast, To Thy house comely is holiness, O Jehovah, for length of days!