It is a sin to despise one's neighbor, but blessed are those who are kind to the needy. (NIV)
He who despises his neighbor sins [against God, his fellowman, and himself], but happy (blessed and fortunate) is he who is kind and merciful to the poor. (AMP)
He that despiseth his neighbour sinneth: but he that hath mercy on the poor, happy is he. (KJV)