2 Corinthians 4:18 while we don't look at the things which are seen, but at the things which are not seen. For the things which are seen are temporal, but the things which are not seen are eternal. (See RSV)
Hebrews 7:24 and he, because of his remaining -- to the age, hath the priesthood not transient, (YLT)
Psalms 39:4 "Yahweh, show me my end, what is the measure of my days. Let me know how frail I am. (See NAS)