New Living Translation
Such knowledge is too wonderful for me, too great for me to understand!

American Standard Version
Such knowledge is too wonderful for me; It is high, I cannot attain unto it.

Berean Study Bible
Such knowledge is too wonderful for me, too lofty for me to attain.

Douay-Rheims Bible
Thy knowledge is become wonderful to me: it is high, and I cannot reach to it.

English Revised Version
Such knowledge is too wonderful for me; it is high, I cannot attain unto it.

King James Bible
Such knowledge is too wonderful for me; it is high, I cannot attain unto it.

World English Bible
This knowledge is beyond me. It's lofty. I can't attain it.

Young's Literal Translation
Knowledge too wonderful for me, It hath been set on high, I am not able for it.

Psalm 139:6 Additional Translations ...