The issue is one of equivocation which I will explain in a moment.
First let me say that I disagree with your dismissal of kepha's examples. Jesus said call no man father. He did not make exceptions for biological fathers. Nor did he say - do not call your elders father.
Kepha’s examples were of addressing men as ‘father’, or giving them the title ‘father’. If we take Jesus’ words as meaning do not address or title anyone, father, then there is clearly a contradiction in scripture.
The Collins Concise Dictionary gives 28 [yes, twenty eight] different meanings to the verb “call”.
The Concise Oxford English Dictionary gives 8 meanings.
But even with that there is plenty of room for equivocation.
According to a Greek Orthodox priest, who is also a Greek translator (and therefore understands Greek), the word translated “call” in Mt 23:9 is misunderstood. I do not understand the technicalities of Greek but apparently the word used (kalesete) is not any of those used to imply a name or title, but means summon or call forth and is in the second person aorist active subjunctive plural form (and no, I don’t understand what that is!).
It’s Strong G2564
[SIZE=14pt]kaleo[/SIZE]
Akin to the base of G2753; to “call” (properly aloud, but used in a variety of applications, directly or otherwise):—bid, call (forth), (whose, whose sur-) name (was [called]).
It’s the same word that is translated call in Mt 9:13, Mk 2:17 & Lk 5:32. “For I came not to call (kalesai) the righteous, but sinners.”
Or in Lk 14:7-24 where it is translated as ‘invited’ (6 times).
This would be the following from the Collins Concise Dictionary
1. to speak out or utter (words, sounds etc.) loudly so as to attract attention
2. (tr) to ask or order to come
or as the Concise Oxford English Dictionary put it:-
[1.] cry out to (someone) in order to summon them or attract their attention.
This is a different meaning of “call” to that used when Protestants say Catholics call their priests father meaning addressing their priests as father.
Collins Concise Dictionary this would be
8. (tr) to name or style: they called the dog Rover.
9. (tr) designate: they called him a coward.
Or from the Concise Oxford English Dictionary
[3.] give a specified name to. address by a specified name, title, etc.
Following this understanding means there is no contradiction in scripture, or in Catholics “calling”, (i.e. addressing) their priests father.