And he said, Take now thy son, thine only son Isaac, whom thou lovest, and ... offer him there for a burnt offering.... And Abraham stretched forth his hand, and took the knife to slay his son. Genesis 22:2,10
Because thou hast done this thing, and hast not withheld thy son, thine only son ... I will bless thee. Genesis 22:16-17
Sanctify unto me all the firstborn, whatsoever openeth the womb among the children of Israel, both of man and of beast: it is mine. Exodus 13:2
Thou shalt set apart unto the LORD all that openeth the matrix, and every firstling that cometh of a beast which thou hast; the males shall be the LORD's. And every firstling of an ass thou shalt redeem with a lamb; and if thou wilt not redeem it, then thou shalt break his neck: and all the firstborn of man among thy children shalt thou redeem. Exodus 13:12
Although the text doesn't explicitly say so, these young Midianite women were probably sacrificed to him.
Kill every male among the little ones, and kill every woman that hath known man by lying with him.
But all the women children, that have not known a man by lying with him, keep alive for yourselves. Numbers 31:17-18
Thirty and two thousand persons in all, of women that had not known man by lying with him. Numbers 31:35
And ... the LORD's tribute was thirty and two persons. Numbers 31:40
Then the Spirit of the LORD came upon Jephthah ... And Jephthah vowed a vow unto the LORD, and said, If thou shalt without fail deliver the children of Ammon into mine hands, Then it shall be, that whatsoever cometh forth of the doors of my house to meet me, when I return in peace from the children of Ammon, shall surely be the LORD's, and I will offer it up for a burnt offering. ... And the LORD delivered them into his hands. And he smote them ... with a very great slaughter. ... And Jephthah came to Mizpeh unto his house, and, behold, his daughter came out to meet him with timbrels and with dances. ... I have opened my mouth unto the LORD, and I cannot go back. ... And ... her father ... did with her according to his vow which he had vowed. Judges 11:29-39
(God apparently approved of Jephthah's sacrifice since he is listed as a hero of faith in Hebrews 11:32.)
To end a three-year famine, David gave two of Saul's sons and five of his grandsons to the Gibeonites to sacrifice to God by hanging their dead bodies on trees. And it worked. God stopped starving the Israelites when they were sacrificed to him.
There was a famine in the days of David three years, year after year; and David enquired of the LORD. And the LORD answered, It is for Saul, and for his bloody house, because he slew the Gibeonites. ... Wherefore David said unto the Gibeonites, What shall I do for you? and wherewith shall I make the atonement? ... And the Gibeonites said unto him ... Let seven men of his sons be delivered unto us, and we will hang them up unto the LORD in Gibeah ... And the king said, I will give them. ... And he delivered them into the hands of the Gibeonites, and they hanged them in the hill before the LORD: and they fell all seven together, and were put to death. ... And after that God was intreated for the land. 2 Samuel 21:1-14 (Episode 129)