29:And Levi made him a great feast in his own house: and there was a great company of publicans and of others that sat down with them.
30:But their scribes and Pharisees murmured against his disciples, saying, Why do ye eat and drink with publicans and sinners?
31:And Jesus answering said unto them, They that are whole need not a physician; but they that are sick.
Book of Luke
Matthew 7
1:Judge not, that ye be not judged.
2:For with what judgment ye judge, ye shall be judged: and with what measure ye mete, it shall be measured to you again.
3:And why beholdest thou the mote that is in thy brother's eye, but considerest not the beam that is in thine own eye?
4:Or how wilt thou say to thy brother, Let me pull out the mote out of thine eye; and, behold, a beam is in thine own eye?
5:Thou hypocrite, first cast out the beam out of thine own eye; and then shalt thou see clearly to cast out the mote out of thy brother's eye
So while these "Christians" are busy condemning posters who refuse to play God and condem homosexuals, they should be ministering to the homosexuals that they feel are spiritually ill.
To take Christ's words regarding judgment in the Sermon on the Mount to mean that we are to suspend discernment and suppress wisdom is against the whole counsel of Scripture. "Or do you not know that the saints will judge the world? If the world is judged by you, are you not competent to constitute the smallest law courts? Do you not know that we will judge angels? How much more matters of this life?" (I Corinthians 6: 2-3, NASB) The power that Christ gave the church to "bind and loose", the admonition of Paul to church discipline in I Corinthians 5, the "sword" given to the civil magistrate in Romans 13, the praise Luke gives to the people of Berea in Acts 17 for examining the Scripture daily all imply the power of judgment is in the hands of the Christian believers, the church, and the civil authorities.
The true context of the admonition in the Sermon on the Mount is with respect to unjust judgment. As an analogy, the condemnation of adultery, homosexuality, bestiality, etc., does not mean that the Christian faith is opposed to sex. Rather, it is commended within the bonds of traditional matrimony, even if condemned elsewhere.