"31Therefore will I howl for Moab, and I will cry out for all Moab; mine heart shall mourn for the men of Kirheres. 32O vine of Sibmah, I will weep for thee with the weeping of Jazer: thy plants are gone over the sea, they reach even to the sea of Jazer: the spoiler is fallen upon thy summer fruits and upon thy vintage. 33And joy and gladness is taken from the plentiful field, and from the land of Moab; and I have caused wine to fail from the winepresses: none shall tread with shouting; their shouting shall be no shouting. 34From the cry of Heshbon even unto Elealeh, and even unto Jahaz, have they uttered their voice, from Zoar even unto Horonaim, as an heifer of three years old: for the waters also of Nimrim shall be desolate." (Jeremiah 48:31-34)
Judging Moab did not bring joy to God. God wept because of the punishment that had to be carried out upon Moab. Moab was a place at ease. They were full of commerce. Their fruit and wine was shipped to other countries over the sea. The land was fruitful and brought forth plentifully. All this would be gone. The spoiler would come and take it. The land, the food, the wine, and the water would be spoiled because of Moab's sin.
God weeps when His enemies are punished. God weeps when He punishes those who are proud against Him. We should weep too. We should not say, "Good, it's about time they got what was coming to them!" Some who call themselves Christians have said such awful things as, "Hell has a big place just for them," or "I hope they rot in hell." What a terrible thing to say, and what a terrible way to think!
Proverbs 24:17,18 warns, "17Rejoice not when thine enemy falleth, and let not thine heart be glad when he stumbleth: 18Lest the LORD see it, and it displease him, and he turn away his wrath from him." If we rejoice at our enemy's punishment or take joy in his fall, this displeases the Lord.
It does not make the Lord happy to punish people for their sins. Lamentations 3:32,33 says, "32But though he cause grief, yet will he have compassion according to the multitude of his mercies. 33For he doth not afflict willingly nor grieve the children of men." God is grieved when He sees people hurt, even if their hurt is the result of their own sin. His heart is heavy and saddened. Ours should be too. Each soul lives somewhere for eternity. When that soul rebels against God and dies in its sins, that soul is lost forever. God cares. Do we?