2 Corinthians 4:17-18

Young's Literal Translation

¹⁷ for the momentary light matter of our tribulation, more and more exceedingly an age-during weight of glory doth work out for us --

¹⁸ we not looking to the things seen, but to the things not seen; for the things seen [are] temporary, but the things not seen [are] age-during.