While I love your quotes I fail to understand your point. I stated that Christians cannot judge NON-Christians. The reason for this is simply because they do not understand the gospel. They are living in darkness until God opens their hearts and minds to the truth. So there is nothing to judge. We can certainly tell them that what they are doing is sin and that they need our Lord Jesus to help them. But unless the Holy Spirit helps their hearts to understand, this means nothing.
OTOH, the quotes you provided are to Christians. We are to teach sound doctrine, keep away from other Christians that are living contrary lives, watch out for those who are tossed by every wind of doctrine, do not give in to false doctrine, etc. Your quotes only reinforces my statement that we ARE to judge Christians and what they are telling us.
And they'll lash out and say, "How DARE you judge me!"
OBVIOUSLY we have 'judged' a NON-Christian just by pointing out 'sin'.
Sorry; but they are for EVERYONE.
"Go ye into ALL the world, and preach the gospel to every creature.