'Sound' in the Bible

that the wise man may hear, and increase in learning; that the man of understanding may attain to sound counsel:

He lays up sound wisdom for the upright. He is a shield to those who walk in integrity;

My son, let them not depart from your eyes. Keep sound wisdom and discretion:

for I give you sound learning. Don't forsake my law.

Counsel and sound knowledge are mine. I have understanding and power.

An unfriendly man pursues selfishness, and defies all sound judgment.

To teach you truth, reliable words, to give sound answers to the ones who sent you?