Jesus looked at him and loved him. “One thing you lack,” he said. (Mark 10:21a)
How do you react when you notice a deficiency in a brother or sister in Christ? Anyone can be a critic, and there are plenty around! But that is not the way that Jesus reacted. When the rich young ruler came to him, he saw a man whose life was in the grip of the love of money. Yet his first reaction was one of love. He saw beyond the man's limitations and saw the man himself.
Jesus says elsewhere that if we gave our own lives the same level of scrutiny that we give to others we would have enough "plank-like" work to keep us busy before we considered having a go at anyone else! But even if we reach anywhere near Christ-like perfection, this doesn't give us licence to throw the first stone. Our motivation should always be one of love.
Love doesn't put people down to make itself look bigger or better. Love doesn't try to score points at someone else's expense. Love takes no delight in keeping someone down. Love sees the best; believes the best; wants the best for the one loved. God is love. Jesus is the "Agapeton" - The Beloved or the Agape-one - the perfect expression of God's covenant Agape love.
Next time you see a brother or sister who falls short (locally or in Christ's wider body), don't look with the eyes of a critic. Look with the eyes of Christ. Before you speak make sure you look and love.