God Will Kill Children
The glory of Israel will fly away like a bird, for your children will die at birth or perish in the womb or never even be conceived. Even if your children do survive to grow up, I will take them from you. It will be a terrible day when I turn away and leave you alone. I have watched Israel become as beautiful and pleasant as Tyre. But now Israel will bring out her children to be slaughtered." O LORD, what should I request for your people? I will ask for wombs that don't give birth and breasts that give no milk. The LORD says, "All their wickedness began at Gilgal; there I began to hate them. I will drive them from my land because of their evil actions. I will love them no more because all their leaders are rebels. The people of Israel are stricken. Their roots are dried up; they will bear no more fruit. And if they give birth, I will slaughter their beloved children." (Hosea 9:11-16 NLT)
God Kills all the First Born of Egypt
And at midnight the LORD killed all the firstborn sons in the land of Egypt, from the firstborn son of Pharaoh, who sat on the throne, to the firstborn son of the captive in the dungeon. Even the firstborn of their livestock were killed. Pharaoh and his officials and all the people of Egypt woke up during the night, and loud wailing was heard throughout the land of Egypt. There was not a single house where someone had not died. (Exodus 12:29-30 NLT)
God Will Kill the Children of Sinners
If even then you remain hostile toward me and refuse to obey, I will inflict you with seven more disasters for your sins. I will release wild animals that will kill your children and destroy your cattle, so your numbers will dwindle and your roads will be deserted. (Leviticus 26:21-22 NLT)
More Rape and Baby Killing
Anyone who is captured will be run through with a sword. Their little children will be dashed to death right before their eyes. Their homes will be sacked and their wives raped by the attacking hordes. For I will stir up the Medes against Babylon, and no amount of silver or gold will buy them off. The attacking armies will shoot down the young people with arrows. They will have no mercy on helpless babies and will show no compassion for the children. (Isaiah 13:15-18 NLT)
Mass Murder
This is what the Lord of hosts has to say: 'I will punish what Amalek did to Israel when he barred his way as he was coming up from Egypt. Go, now, attack Amalek, and deal with him and all that he has under the ban. Do not spare him, but kill men and women, children and infants, oxen and sheep, camels and asses.' (1 Samuel 15:2-3 NAB)
God Kills Some More
Then the LORD said to me, "Even if Moses and Samuel stood before me pleading for these people, I wouldn't help them. Away with them! Get them out of my sight! And if they say to you, 'But where can we go?' tell them, 'This is what the LORD says: Those who are destined for death, to death; those who are destined for war, to war; those who are destined for famine, to famine; those who are destined for captivity, to captivity.' "I will send four kinds of destroyers against them," says the LORD. "I will send the sword to kill, the dogs to drag away, the vultures to devour, and the wild animals to finish up what is left. Because of the wicked things Manasseh son of Hezekiah, king of Judah, did in Jerusalem, I will make my people an object of horror to all the kingdoms of the earth." (Jeremiah 15:1-4 NLT)
everything also quote from the storybook 
