New Living Translation
Then I realized that my heart was bitter, and I was all torn up inside.

American Standard Version
For my soul was grieved, And I was pricked in my heart:

Berean Study Bible
When my heart was grieved and I was pierced within,

Douay-Rheims Bible
For my heart hath been inflamed, and my reins have been changed:

English Revised Version
For my heart was grieved, and I was pricked in my reins:

King James Bible
Thus my heart was grieved, and I was pricked in my reins.

World English Bible
For my soul was grieved. I was embittered in my heart.

Young's Literal Translation
For my heart doth show itself violent, And my reins prick themselves,

Psalm 73:21 Additional Translations ...