'Consecrate' in the Bible

“Speak to the Israelites and tell them: When a man or woman makes a special vow, a Nazirite vow, to consecrate himself to the Lord,

The priest is to offer one as a sin offering and the other as a burnt offering to make atonement on behalf of the Nazirite, since he sinned because of the corpse. On that day he must consecrate his head again.

And he shall consecrate unto the LORD the days of his separation, and shall bring a lamb of the first year for a trespass offering: but the days that were before shall be lost, because his separation was defiled.

"But give this command to the people: "You are to consecrate yourselves, because tomorrow you're going to eat meat, since you've complained where the LORD can hear it, "Who can give us meat to eat? After all, life was better with us in Egypt." Therefore, the LORD is going to give you meat and you'll eat

But the LORD rebuked Moses and Aaron, telling Moses: "Because you both didn't believe me, because you didn't consecrate me as holy in the presence of the Israelis, you won't be the ones to bring this congregation into the land that I'm about to give them."