# Who can say, "I have kept my heart pure; I am clean from my sin"?

"No one can say that his heart is clean and that he is free from sin"

# my heart

Here a person's "heart" refers to his thoughts and desires. Alternate translation: "my thoughts"

# clean

A person who God considers spiritually acceptable is spoken of as being physically clean.

# I am clean from my sin

"I am without sin"