There are two versions of the Hebrew Alphabet. The first version is the one that is also called Phoenician Alphabet, or at least to one not reading it, the difference is not very apparent. A written source I cannot recall the title of has stated this version is called Hivrit. The other version is the one you call very often Square Writing, or at least in German you say "Quadratschrift" and in Swedish "Qvadratskrift". Meaning that it is a writing and that it is square or consists of (incomplete or broken or diagonalised etc.) squares. It is called Ashuri. Or Assyrian writing.
It was pretty certainly derived from the older one as far as general relative letter shapes go. But it was with not very much less certainty in my mind inspired in its general common shape by the cuneiform writing.
Now, there is the thing about Christianity, it is Hebrew. The first book of the Canonical Books of the New Testament begins with a genealogy (as so many exist in Genesis) where the presentation begins stating that Jesus is Christ and that He is Son of Abraham and of King David.
But there is this other thing about Christianity, it is in a sense Anti-Jewish. In a sense meaning that in another sense it is very pro-Jewish or Jewish.
But this does not mean there is no such thing as an opposition to Judaism.
To us Christians, there is a Jerusalem in Heaven. That would mean, though it is often overlooked, Heaven is the remaining and eternal Kingdom of Judah. One consequence is that as among Kings of Judah the queen was not the wife but the mother, so also in Heaven the Queen is the Blessed Virgin Mary.
But another consequence is that it is Heaven which decides where the faithful of the tribe of Judah are.*
To one of the original twelve Catholic Bishops Heaven's Glorious King, the Son of Abraham and the Son of David, said about some at least or perhaps all of the earliest proponents of Judaism:
 And to the angel of the church of Smyrna write: These things saith the First and the Last, who was dead, and is alive:  I know thy tribulation and thy poverty, but thou art rich: and thou art blasphemed by them that say they are Jews and are not, but are the synagogue of Satan.  Fear none of those things which thou shalt suffer. Behold, the devil will cast some of you into prison that you may be tried: and you shall have tribulation ten days. Be thou faithful until death: and I will give thee the crown of life.
Apocalypse chapter 2
It seems** "angel" of a Church was an old term for bishop, though not applied to the Apostles who were the original bishops, rather to bishops having received succession from them. And it seems then that the bishop of Smyrna was of Jewish origin or had several Christian faithful of Jewish origin and some had been insulted as if becoming Christians was a defection from the faith of the Jewish forefathers, like those fighting under the Maccabees or those loyal to Rohoboam, not because he was good, but because he was of King David. And the ultimate son of David in the royal sense, He tells his bishops that it is us Catholics who are the real Jews, the real children of Abraham, while the early proponents of Judaism, insulting, harrassing and personally persecuting them as well as handing them over to the Romans are not real Jews in the eyes of Heavenly Jerusalem.
Both Catholics and Orthodox pray the psalm "save thy folk and preserve thy inheritance" - implying faithfully that the Church is this people of God.
Pius XI said "how can a Christian be Antisemite? Spiritually we are all Semites." Yes we are, but perhaps the ones usually called Jews aren't.
Bergoglio claims to be a Jew and a Christian - a Jew while saying the Psalms and a Christian while celebrating Holy Mass (insofar as he does so validly). To me that sounds like saying:
"I am an Assyrian when I say the Psalms, but a child of Abraham when I say Holy Mass".
I agree wholeheartedly against him, when the late Abbot of Le Barroux, replying to a Jew who had said we Catholics are heretics or schismatics, that no, on the contrary it is Jews who are heretics and schismatics. They are insofar as they reject Jesus Christ. And Heaven finds them Assyrian. At least those of them who persecute Christians.
Hans Georg Lundahl
Bpi, Georges Pompidou
Sunday after Corpus Christi
also known as Corpus Domini
* A bit like Goering who, no doubt after feeling himself a bit more heavenly than he was as an air force officer, when saving a family of Jews whose friends he and his family were, told the Nazi underling "hier bestimme ich wer Jude ist!" My grandfather heard it from the survivors when visiting the Holy Land. Of course, it is perfectly OK on earth to call adherents of the false religion Judaism Jews and to say one is not Jew because that is how the word Jew is used. That was, some year or years after the Apocalypse was written authorised by the same St John, or by the Holy Ghost writing through him. When "Jew" in the Gospel is used by the narrator, yes, it means that synagogue of Satan, the enemies of Jesus Christ, but in the Mouth of Jesus Christ, Jew, up to his dialogue with Pilate, meant what it had meant since those faithful to Rohoboam for the sake of God's promise to David.
** I hold this theory not of myself, as if I had invented it, but I adher to the conclusions of a convert to Catholicism, who wrote a book about why Catholicism is truly Biblical when he had been ordained priest. I cannot remember his name, but his book cited or adapted a verse of St Paul about "one God, one faith, one Church" or sth like that. As its title.