Proverbs 20:9

7 The righteous man walks with integrity; blessed are his children after him.

8 A king who sits on a throne to judge sifts out all evil with his eyes.

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

10 Differing weights and unequal measures — both are detestable to the LORD.

11 Even a young man is known by his actions— whether his conduct is pure and upright.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
Who can say, “I have kept my heart pure; I am cleansed from my sin”?
KJV
Who can say, I have made my heart clean, I am pure from my sin?
WEB
Who can say, “I have made my heart pure. I am clean and without sin”?
ASV
Who can say, I have made my heart clean, I am pure from my sin?
DARBY
Who can say, I have made my heart clean, I am pure from my sin?
BLB
Who can say, “I have made clean my heart; I have been cleansed from my sin?
ÅB
Hvem kan si: Jeg har renset mitt hjerte, jeg er fri for min synd?
OTB
Hvem kan si: «Jeg har renset mitt hjerte; jeg er fri fra min synd»?
B1930
Hvem kan si: Jeg har renset mitt hjerte, jeg er fri for min synd?

Study notes (Tyndale)

Original text and word study

Cross references