The Christian god is unmerciful compared to the Jewish G-d.

Why the Jewish G-d is unmerciful Jewish G-d sends wicked people to hell, a place of shame, everlasting contempt, and desolation Daniel 12:2 - Multitudes who sleep in the dust of the earth will awake: some to everlasting life, others to shame and everlasting contempt. Daniel 12:10-11 - Many will be purified, made spotless and refined, but the wicked will continue to be wicked. None of the wicked will understand, but those who are wise will understand. From the time that the daily sacrifice is abolished and the abomination that causes desolation is set up, there will be 1,290 days. Psalm 110:5-6 -The Lord is at your right hand; he will crush kings on the day of his wrath.He will judge the nations, heaping up the dead and crushing the rulers of the whole earth. The only way to escape this judgement is be righteous (i.e. not wicked). The only way to achieve righteousness is strict adherence to the Law as given to Moses by God Ecclesiastes 7:20 Indeed, there is no one on earth who is righteous, no one who does what is right and never sins. The only way to become right with G-d (i.e. righteous) is through animal sacrifice, as prescribed in the Law. Any time the people of Israel stopped following the law and turned to other gods, bad things happened to them as G-d’s punishment for not following the Law. (For numerous examples of this, see the book of Judges) G-d only revealed this way to become right with him to a select group of people. In fact G-d only chose to have relationships with one family, Abraham, and his descendants, and to some of Abraham’s predecessors. People of other nations can only learn how to be righteous by the example set by the nation of Israel (which was not always a great example) And the only way to become righteous is to become a Jew, and follow the law. This means that one nation and race has a monopoly on salvation, everyone else is wicked and will be punished on judgement day. In addition to this, the actions of G-d are extremely unmerciful. In Exodus 12 God kills every firstborn child in Egypt unless their door is marked with the blood of a lamb. Only the Jews were given the information to avoid the death of the firstborn. This punishment was indiscriminate, and affected all Egyptians, regardless of whether or not it was deserved. Even poor people and babies who would have had no part in keeping the Israelites as slaves were not spared. Often G-d’s punishment is arbitrary such as this. 2 Kings 2:23-24 From there Elisha went up to Bethel. As he was walking along the road, some boys came out of the town and jeered at him. “Get out of here, baldy!” they said. “Get out of here, baldy!”He turned around, looked at them and called down a curse on them in the name of the Lord. Then two bears came out of the woods and mauled forty-two of the boys. G-d killed forty two boys because they were making fun of a prophet for being bald. This is not mercy. The treatment of women in the law shows how unmerciful G-d is. Leviticus 15:28-30“When the woman’s bleeding stops, she must count off seven days. Then she will be ceremonially clean. On the eighth day she must bring two turtledoves or two young pigeons and present them to the priest at the entrance of the Tabernacle.The priest will offer one for a sin offering and the other for a burnt offering. Through this process, the priest will purify her before the LORD for the ceremonial impurity caused by her bleeding. Women are considered unclean when they are on their period, and afterwards must offer two birds as sacrifice for their sin. And that sin is menstruating. G-d was the creator of menstruation, but he considers it a sin. Deuteronomy 22:20-21 If, however, the charge is true and no proof of the young woman’s virginity can be found, she shall be brought to the door of her father’s house and there the men of her town shall stone her to death. Why are men not held to this standard? If promiscuity is such an intolerable act then shouldn’t men also be stoned for it? This passage also brings up another aspect of the nature of G-d that is inherently unmerciful. The punishment for many sins in the Law is stoning. If someone is stoned they are not given the chance to make an atoning sacrifice and therefore are considered wicked when they die. So the act of stoning, which G-d commands, ensures that that person’s soul will be eternally in hell. G-d punishes people for the sins of their parents Exodus 20:5 for I, the Lord your God, am a jealous God, punishing the children for the sin of the parents to the third and fourth generation of those who hate me, The third and fourth generations of children might not even know their predecessor who sinned. But regardless of whether they are righteous or not, they will be punished. 2 Samuel 12:15 And the LORD struck the child that Uriah's wife bare unto David, and it was very sick. The child eventually died after seven days. This was David’s punishment for committing adultery and murder. The punishment was to kill a baby. This baby had not done anything to deserve this, but G-d specifically killed it. G-d kills people because they complain about him killing them Numbers 16:41 The next day the whole Israelite community grumbled against Moses and Aaron. “You have killed the Lord’s people,” they said..." "and the Lord said to Moses, 45 “Get away from this assembly so I can put an end to them at once.” And they fell facedown. 46 Then Moses said to Aaron, “Take your censer and put incense in it, along with burning coals from the altar, and hurry to the assembly to make atonement for them. Wrath has come out from the Lord; the plague has started.” 47 So Aaron did as Moses said, and ran into the midst of the assembly. The plague had already started among the people, but Aaron offered the incense and made atonement for them. 48 He stood between the living and the dead, and the plague stopped. 49 But 14,700 people died from the plague, in addition to those who had died because of Korah. It should be mentioned that Moses and Aaron killed because G-d told them to. G-d commands his people to kill indiscriminately, men, women, and children. They devoted the city to the Lord and destroyed with the sword every living thing in it—men and women, young and old, cattle, sheep and donkeys. - Joshua 6:21 the Lord our God delivered him over to us and we struck him down,together with his sons and his whole army. 34 At that time we took all his towns and completely destroyed them—men, women and children. We left no survivors. - Deuteronomy 2:33 The Spirit of G-d helps Sampson kill random people because he lost a bet. “Then the Spirit of the Lord came powerfully upon him. He went down to Ashkelon, struck down thirty of their men, stripped them of everything and gave their clothes to those who had explained the riddle.” Judges 14: 19 God kills someone for refusing to have children with his dead brother’s wife “But Onan knew that the child would not be his; so whenever he slept with his brother’s wife, he spilled his semen on the ground to keep from providing offspring for his brother. 10 What he did was wicked in the Lord’s sight; so the Lord put him to death also.” Genesis 38:9-10 God threatens cannibalism as a punishment. “27 “‘If in spite of this you still do not listen to me but continue to be hostile toward me, 28 then in my anger I will be hostile toward you, and I myself will punish you for your sins seven times over. 29 You will eat the flesh of your sons and the flesh of your daughters.” - Leviticus 26:27-29 The Christian God killed Annias and Sapphira, and eternally punishes people who don’t believe in Jesus. But accepting Jesus is way easier than following the Law, and if you don’t follow the Law, the Jewish G-d sends you to hell for being wicked. Instead of making animal sacrifices all the time, Jesus is the one sacrifice, so people don’t have to keep killing animals. And if you accept Jesus, God sends the Holy Spirit to help you be a good person. So compared to G-d, God is pretty merciful.