What is the Biblical Theological Significance of Melchizedek?

The Family of Abraham - Part 4—Defeating the Kings, Rescuing Lot, Meeting Melchizedek, Genesis 14: Biblical Reading and Reflections, The Tree of the Knowledge of Good and Evil and the Image of God, Levirate Marriage, Why Doesn’t Eleazar Die in the Wilderness?, The Test of Jealousy, Joanna the Wife of Chuza.