New Living Translation
He does great things too marvelous to understand. He performs countless miracles.

American Standard Version
Who doeth great things and unsearchable, Marvellous things without number:

Berean Study Bible
the One who does great and unsearchable things, wonders without number.

Douay-Rheims Bible
Who doth great things and unsearchable and wonderful things without number:

English Revised Version
Which doeth great things and unsearchable; marvelous things without number:

King James Bible
Which doeth great things and unsearchable; marvellous things without number:

World English Bible
who does great things that can't be fathomed, marvelous things without number;

Young's Literal Translation
Doing great things, and there is no searching. Wonderful, till there is no numbering.

Job 5:9 Additional Translations ...