Well, the "kill all the toddlers" bit is a theme Jehovah comes back to several times in the Bible. That is what leads to notions of "bad blood" on the part of some of its devotees.
He seems to repent of it in Jeremiah 27:30;
The days are surely coming, says the LORD, when I will sow the house of Israel and the house of Judah with the seed of humans and the seed of animals. And just as I have watched over them to pluck up and break down, to overthrow, destroy, and bring evil, so I will watch over them to build and to plant, says the LORD. 29 In those days they shall no longer say:
"The parents have eaten sour grapes,
and the children's teeth are set on edge."
But all shall die for their own sins; the teeth of everyone who eats sour grapes shall be set on edge.