The following is the result of a range of meaning study I did on the Greek word krino_ and its derivatives. I started by finding every verse in the New Testament where these Greek words appeared. I then removed every instance that concerned God's action of judging because our concern is when humans are to judge or not judge. I then examined each passage in context to determine the meaning. In some cases I had to consult scholarly sources if the Biblical author's meaning was not readily apparent. I then made categories for the various meanings that I found and placed each verse in the correct category, based on the Greek word that was translated. Then I further sorted the categories by "do"; "do not" and then tangential categories that did not fit the do or do not schema. The following is the result. You can look up the verses yourself to determine if you think I correctly categorized them. The most interesting result to me is that the largest category contained passages about discerning.
-- Bob DeWaay

Do make a correct determination based on facts and/or Scripture(discern):
Krino_
   Luke 7:43, Luke 12:57, John 7:22-24, John 7:51, John 8:15, 16, Acts 4:19, Acts 15:19, Acts 16:15, Acts 23:26, 1Corinthians 2:2, 1Corinthians 5:3, 1Corinthians 5:12, 13, 1Corinthians 7:37, 1Corinthians 10:15, 1Corinthians 11:13, 1Corinthians 11:31, 32, 2Corinthians 5:14

Diakrino_
   Matthew 16:13, 1Corinthians 11:29, 31, 1Corinthians 14:29

Diakrisis
   Hebrews 5:14
 

Do discern spirits:
Diakrisis
   1Corinthians 12:10
 

Do not judge motives or relative piety:
Krino_
   Matthew 7:1-3, 1Corinthians 4:5

Diakrino_
   1Corinthians 4:7
 

Do not show partiality or prejudice (pre-judge who to treat kindly):
Krino_
   Luke 6:35-38

Diakrino_
   James 2:4
 

Do not judge oneself to be unworthy of salvation by rejecting the gospel:
Krino_
   Acts 13:46
 

Do not hide your own guilt by condemning others who are no different:
Krino_
   Romans 2:1-3, Romans 2:27
 

Do not judge someone for that which he has been given liberty by God:
Krino_
   Romans 14:3-5, 10, 13, 1Corinthians 10:29
 

Do not judge the opinions of a weaker brother:
Diakrisis
   Romans 14:1
 

Do not allow another to judge you in a matter in which you have been given liberty:
Krino_
   Colossians 2:16

Do not insist on using one's liberty in a way that harms a weaker brother:
Krino_
   Romans 14:22

Do not take God's place as lawgiver and then judge your brother based on your own decrees:
Krino_
   James 4:11, 12

Do not take a fellow Christian to court but make proper judgment within the church:
Krino_
   1Corinthians 6:1-3

Diakrino_
   1Corinthians 6:5

Do not have doubt:
Diakrino_
   Matthew 21:21, Mark 11:23, Romans 4:20, Jude 1:22, James 1:6

Do not have serious misgivings about an action, but then do it anyway:
Diakrino_
   Romans 14:23

Do not ask questions for conscience sake before eating meat:
Anakrino_
   1Corinthians 10:25, 27

The Lord makes the final examination:
Anakrino_
   1Corinthians 4:3, 4

When the church prophesies properly, an unbeliever will be called to account:
Anakrino_
   1Corinthians 14:24

Apostles making a determination for the church:
Krino_
   Acts 16:4, Acts 21:25

To be without misgivings:
Diakrino_
   Acts 11:12

To examine in order to make an appraisal:
Anakrino_
   Luke 23:14, Acts 12:19, Acts 17:11, Acts 24:8, Acts 28:18, 1Corinthians 2:14, 15, 1Corinthians 9:3