New Testament writers use the word "gospel" a hundred times altogether, mostly generically ("the gospel" or "this gospel," etc. ...
There are many 'gospels' in the world but only one true gospel—the message that Christ brought about the good news of His coming Kingdom! It is the ONLY gospel that will bring us salvation. We need to hear it!
Instead of some grandiose title, God asks us to call Him simply "Father." We have human fathers, church fathers and since our calling, a spiritual Father. The role of father is very important!