When it comes to his job of being Gabriel is the third oldest of his siblings. When it comes to his job of being the messenger of God, Gabriel takes this role very seriously. Michael is is older brother, and Lucifer is is older brother. Lucifer and Gabriel have made amends. Gabriel is aware of how dysfunctional his family is and engaged in many attempts to amend their broken links. God is his Father. Gabriel is a messenger angel of God.