New Living Translation
Who can say, “I have cleansed my heart; I am pure and free from sin”?

American Standard Version
Who can say, I have made my heart clean, I am pure from my sin?

Berean Study Bible
Who can say, “I have kept my heart pure; I am cleansed from my sin”?

Douay-Rheims Bible
Who can say: My heart is clean, I am pure from sin?

English Revised Version
Who can say, I have made my heart clean, I am pure from my sin?

King James Bible
Who can say, I have made my heart clean, I am pure from my sin?

World English Bible
Who can say, "I have made my heart pure. I am clean and without sin?"

Young's Literal Translation
Who saith, 'I have purified my heart, I have been cleansed from my sin?'

Proverbs 20:9 Additional Translations ...