Better terminology for "Father and Son" ?

[Godscreated]

Usage of the term in this era is misleading to your contemporaries, however.  They hear "Father and Son" from a pulpit and they are going to think of dear old dad and themselves as the reference standard, two distinct individuals, and their resultant understanding of the Trinity will be incorrect and their resultant belief will not garner Salvation as they are denying, unaware, and mistaken about  the true nature of Christ as, you note, it has been revealed in Scripture.

 Christians understand the relationship between God the Father and God the Son, they know it's not like that of an earthly father and a earthly son.
Why would you think differently, because you do not understand.

GC