'Age during' in the Bible

but because of this I found kindness, that in me first Jesus Christ might shew forth all long-suffering, for a pattern of those about to believe on him to life age-during:

be striving the good strife of the faith, be laying hold on the life age-during, to which also thou wast called, and didst profess the right profession before many witnesses.

who only is having immortality, dwelling in light unapproachable, whom no one of men did see, nor is able to see, to whom is honour and might age-during! Amen.

treasuring up to themselves a right foundation for the time to come, that they may lay hold on the life age-during.