New Living Translation
I will steady him with my hand; with my powerful arm I will make him strong.

American Standard Version
With whom my hand shall be established; Mine arm also shall strengthen him.

Berean Study Bible
My hand will sustain him; surely My arm will strengthen him.

Douay-Rheims Bible
For my hand shall help him: and my arm shall strengthen him.

English Revised Version
With whom my hand shall be established; mine arm also shall strengthen him.

King James Bible
With whom my hand shall be established: mine arm also shall strengthen him.

World English Bible
with whom my hand shall be established. My arm will also strengthen him.

Young's Literal Translation
With whom My hand is established, My arm also doth strengthen him.

Psalm 89:21 Additional Translations ...