ESV: That which has been is far off, and deep, very deep; who can find it out?
NIV: Whatever exists is far off and most profound— who can discover it?
NASB: What has been is remote and very mysterious. Who can discover it?
CSB: What exists is beyond reach and very deep. Who can discover it?
NLT: Wisdom is always distant and difficult to find.
KJV: That which is far off, and exceeding deep, who can find it out?
NKJV: As for that which is far off and exceedingly deep, Who can find it out?