The Bible does not say that Melchizedek left the earth in the same way as Enoch and Elijah.
* Enoch: Genesis 5:24 states that "Enoch walked faithfully with God; then he was no more, because God took him." This is generally interpreted as Enoch being taken directly to heaven without experiencing death.
* Elijah: 2 Kings 2:11 describes Elijah being taken up to heaven in a whirlwind.
* Melchizedek: The Bible does not describe the end of Melchizedek's life. He appears in Genesis 14 as a king and priest who blesses Abraham, and is later mentioned in Psalm 110 and the Book of Hebrews as a figure prefiguring Christ. However, there is no account of his death or departure from earth.
Because the Bible does not say anything about his death, there are questions, speculations, and mysteries surrounding him.