Because God ordained it to be so.
The Old Testament Moses is not a canonized saint. However, there are several other saints dating in the years AD who are canonized saints. Old Testament personages are not usually accorded the title of saint.
Abraham is an Old Testament patriarch. He is not canonized nor does he have the title of saint. That term is usually reserved for New Testament personages.
The title "saint" is usually referred only to personages of the New Testament. Joshua was a patriarch of the Old Testament from the 12th century B.C. His memorial is observed on September 1. He was never canonized.
There is no canonized New Testament saint named Jonathan. There is, however, an Old Testament personage by that name who was a contemporary of King David. The title saint is usually only for the New Testament.
The title "saint" is usually referred only to personages of the New Testament. Joshua was a patriarch of the Old Testament from the 12th century B.C.
Saint Aaron is one of a handful of saints that fall under the title of canonized pre-congregation. No specific dates of canonization are available because the process that it takes to become a saint today was not yet in use.
No. Alexander the Great lived before the Hebrew scriptures were canonized as one book.
Isaiah was a Jewish prophet from the Tanakh (Bible's Old Testament). Isaiah was never canonized and is not considered as a saint by the Catholic church.
Adam, the Old Testament patriarch, is not accorded the title of saint and was never canonized. The title of saint is usually reserved for followers of Christ - New Testament.
The Old Testament.
The term saint refers to New Testament individuals. I can find no saints who entered heaven after the death of Our Lord named Joshua. There may be many such saints with that name who are known only to God. We do not usually refer to holy people from the Old Testament as saints, although they may be in Heaven.
Saint Sarah is not recognized as a canonized saint in the Catholic Church. She is venerated in France as Saint Sarah la Kâli, particularly by Romani people, but her status as a saint is more of a local tradition rather than an officially canonized recognition.