'Dead' in the Bible

You are children of the Lord your God. Do not cut yourselves or shave your forehead bald for the sake of the dead.

If brothers live together and one of them dies without having a son, the dead man's wife must not remarry someone outside the family. Instead, her late husband's brother must go to her, marry her, and perform the duty of a brother-in-law.

Then the first son she bears will continue the name of the dead brother, thus preventing his name from being blotted out of Israel.

I have not eaten anything when I was in mourning, or removed any of it while ceremonially unclean, or offered any of it to the dead; I have obeyed you and have done everything you have commanded me.