4/4
In Genesis, God asks Abraham to sacrifice his only son Isaac, to God, for testing his faith.
Genesis 22: 2
Then God said [to Abraham], “Take your son, your only son, whom you love—Isaac—and go to the region of Moriah. Sacrifice him there as a burnt offering on a mountain I will show you.”
Abraham actually prepared to sacrifice his son and only at the last moment, the angel of God thwarts him and says it was a test.
Genesis 22: 10-12
Then he reached out his hand and took the knife to slay his son. But the angel of the Lord called out to him from heaven, “Abraham! Abraham!”. “Here I am,” he replied. “Do not lay a hand on the boy,” he said. “Do not do anything to him. Now I know that you fear God, because you have not withheld from me your son, your only son".
In the New Testament, Jesus is fully human and his death at the cross is a sacrifice to God for the sins of all humanity - so this means that Jesus himself is a human sacrifice for the sins of all of humanity. God sacrifices himself in human for himself.
John 1: 29
Behold, the Lamb of God (Jesus), who takes away the sin of the world!
Jesus, the human, is the lamb that is sacrificed by crucifixion (on the day of Passover in Jewish calnedar when lambs are sacrificed) to take away the sins of all of humanity once and for all.

5/n
Ezekiel 20: 25–26 tells us that God achieved personal satisfaction from recognition as the Lord by those who committed child sacrifice:
""Moreover I gave them statutes that were not good and ordinances by which they could not have life; and I defiled them through their very gifts in making them offer by fire all their first-born, that I might horrify, them; I did it that they might know that I am the Lord".

6/n
Another example
2 Kings 21:6
6 He [King Manasseh] sacrificed his own son in the fire, practiced divination, sought omens, and consulted mediums and spiritists.