What God says about Vampires
God forbids eating or drinking blood.
3 Every moving thing that lives shall be food for you. And as I gave you the green plants, I give you everything. 4 But you shall not eat flesh with its life, that is, its blood. 5 And for your lifeblood I will require a reckoning: from every beast I will require it and from man. From his fellow man I will require a reckoning for the life of man. 6 “Whoever sheds the blood of man, by man shall his blood be shed, for God made man in his own image. (Genesis 9:3-6)
12 Therefore I have said to the people of Israel, No person among you shall eat blood, neither shall any stranger who sojourns among you eat blood. 13 “Any one also of the people of Israel, or of the strangers who sojourn among them, who takes in hunting any beast or bird that may be eaten shall pour out its blood and cover it with earth. 14 For the life of every creature is its blood: its blood is its life. Therefore I have said to the people of Israel, You shall not eat the blood of any creature, for the life of every creature is its blood. Whoever eats it shall be cut off. (Leviticus 17:12-14)
God associates a curse on the children of those who eat blood.
23 Only be sure that you do not eat the blood, for the blood is the life, and you shall not eat the life with the flesh. 24 You shall not eat it; you shall pour it out on the earth like water. 25 You shall not eat it, that all may go well with you and with your children after you, when you do what is right in the sight of the Lord. (Deuteronomy 12:23-24)
God uses Paul and the Apostles to reaffirm His command not to eat blood.
25 But as for the Gentiles who have believed, we have sent a letter with our judgment that they should abstain from what has been sacrificed to idols, and from blood, and from what has been strangled, and from sexual immorality.” (Acts 21:25 See Also Acts 15:15 and Acts 15:29)
God holds us accountable to know His laws. He curses the children of those who reject His laws.
My people are destroyed for lack of knowledge; because you have rejected knowledge, I reject you from being a priest to me. And since you have forgotten the law of your God, I also will forget your children. (Hosea 4:6)