NET
15 Whatever exists now has already been, and whatever will be has already been; for God will seek to do again what has occurred in the past.
Darby
15 That which is was long ago, and that which is to be hath already been; and God bringeth back again that which is past.
KJV
15 That which hath been is now; and that which is to be hath already been; and God requireth that which is past.