Judah was a son of Israel ('prince/princes of God') even if that included sonship by tutelage in holy and spiritual things. Israel preceeded Judah and Judah stemmed from Israel rather than vice versa. The NT lucidates that the saints are members of a royal priesthood (it appears that they are seated and empowered directly by God--thus princes (Sarah means prince) of the Most High [El--high, highest]).
Regarding nationality and scripture: is it not true that the terms of a trust or agreement can be put in writing?
There is Strong's, yes. But there is also Gensenius.
An English-Hebrew lexicon : being a complete verbal index to Gesenius' Hebrew lexicon as translated by Prof. Edward Robinson, D.D. (Joseph Potter Lewis)
An Account of the Printed Text of the Greek New Testament (Samuel Prideaux Tregelles)