Being Christian!!!!!

I have been wondering how can we be Christians if we sit and judge others and say a new person in Christ should not be friends with someone the church as a whole has determined to be sinning; are we all not sinners ? We are only to be saved by the grace of God.......we are not perfect ,we can omly strive to be Christ like....yet we shall always fall short.God alone will see into our hearts and see our true selves.I say do as Christ said love your neighbors and also love your enemies ;maybe your love will turn them around to God.I pray we all will be part of God's family always.