'Heard' in the Bible

“When someone sins in any of these ways: If he has seen, heard, or known about something he has witnessed, and did not respond to a public call to testify, he is responsible for his sin.

When Moses heard this, it was acceptable to him.

“Bring the one who has cursed to the outside of the camp and have all who heard him lay their hands on his head; then have the whole community stone him.