Leviticus 7:27

“However, flesh with its life, that is, its blood, you shall not eat.

‘Now if his offering is a sacrifice of peace offerings, if he is going to bring near one from the herd, whether male or female, he shall bring it near without blemish before Yahweh.

‘And any man from the house of Israel, or from the sojourners who sojourn among them, who eats any blood, I will set My face against that person who eats blood and will cut him off from among his people.

‘You shall not eat anything with the blood nor interpret omens or soothsaying.

Then they told Saul, saying, “Behold, the people are sinning against Yahweh by eating with the blood.” And he said, “You have acted treacherously; roll a great stone to me today.”