Proverbs 17:5
"Whoso mocketh the poor reproacheth his Maker: and he that is glad at calamities shall not be unpunished."
Cross References (ranked by relevance)
He that oppresseth the poor reproacheth his Maker: but he that honoureth him hath mercy on the poor.
If I rejoiced at the destruction of him that hated me, or lifted up myself when evil found him:
Every one that is proud in heart is an abomination to the LORD: though hand join in hand, he shall not be unpunished.
Rejoice with them that do rejoice, and weep with them that weep.
He that despiseth his neighbour sinneth: but he that hath mercy on the poor, happy is he.
For the zeal of thine house hath eaten me up; and the reproaches of them that reproached thee are fallen upon me.
As for me, I have not hastened from being a pastor to follow thee: neither have I desired the woeful day; thou knowest: that which came out of my lips was right before thee.
For as ye have drunk upon my holy mountain, so shall all the heathen drink continually, yea, they shall drink, and they shall swallow down, and they shall be as though they had not been.