I hate to take sides, but:
"I will also send wild beasts among you, which shall rob you of your children." (Leviticus 26:22)
"Now kill all the boys. And kill every woman who has slept with a man, but save for yourself every girl who has never slept with a man." (Numbers 31:17-18 )
"The Lord commands: "... slay old men outright, young men and maidens, little children and women" (Ezechial 9:4-6)
"When the Lord delivers it into your hand, put to the sword all the males .... As for the women, the children, the livestock and everything else in the city, you may take these as plunder for yourselves." (Deuteronomy 20:13-14)
"You will eat the fruit of the womb, the flesh of the sons and daughters the Lord your God has given you." (Deuteronomy 28:53)
"The Lord said to Joshua [...] 'you are to hamstring their horses.' " (Exceedingly cruel.) (Joshua 11:6)
"... Go and smite the inhabitants of Jabesh-gilead with the edge of the sword and; also the women and little ones.... every male and every woman that has lain with a male you shall utterly destroy." (Judges 21:10-12)
"This is what the Lord says: Now go and smite Amalek, and utterly destroy all that they have; do not spare them, but kill both man and woman, infant and suckling, ox and sheep, camel and ass .... And Saul ... utterly destroyed all the people with the edge of the sword." (1 Samuel 15:3,7-8 )
"The people of Samaria must bear their guilt, because they have rebelled against their God. They will fall by the sword; their little ones will be dashed to the ground, their women with child ripped open." (Hosea 13:16)
"A curse on him who is lax in doing the LORD's work!
A curse on him who keeps his sword from bloodshed!" (Jeremiah 48:10)