score:7
First, I'd point out that even in modern times full names are far from unambiguous. My own fairly uncommon first, middle, and last name together are not enough to uniquely single me out. All legal records use some other way of identifying me: a birth certificate number, a social security number, a passport number, a residence permit number. Civil governments in our modern world ALWAYS use something beyond assigned names to keep track of people because names simply don't cut it.
In the ancient world there were not good ways of keeping track of id numbers. Databases were not centralized and UUIDs were not a thing. Instead they would group records. In the near east of Jesus' era the Romans handled this by region. This is why when the census was done just before Jesus birth everybody had to register in "Their own city". That also explains why Jesus was commonly known as "Jesus of Nazareth". Nazareth being a small town and there not being too many popular figures coming out of there, that was enough to place him in most people's minds.
We don't have any civil records from the era that record anything more than what we have in Scripture, but Scripture gives us a pretty good idea how he was known both colloquially and legally. In particular Matthew was a former tax collector and Luke was a historian. Besides identifying his place (Nazareth) the most accurate way to identify people was to list off some of their genealogy.
Matthew 1:1 The book of the generation of Jesus Christ, the son of David, the son of Abraham.
Upvote:2
Jesus did pay tax, as we see at Mtt 17: 24-27 "....... "But so that we may not offend them, go to the lake and throw out your line. Take the first fish you catch; open its mouth and you will find a four-drachma coin. Take it and give it to them for my tax and yours."
That shows his name was there in the records of the tax authority. It would not have been, in all probability, just Jesus.
Upvote:5
How did Jesus write his full name in civil records?
Jesus never signed such a document.
There is no historical records or proofs that Our Lord Jesus called the Christ ever signed a single civil document whatsoever.
Thus this question is complete speculation to say the least as we have no idea as to how he would do so:
I have never heard of any Catholic Traditions dealing with this subject.
Your guess is as good as mine!
A typical Jew in Jesus' time had only one name, sometimes followed by the phrase "son of ", or the individual's hometown. Thus, in the New Testament, Jesus is commonly referred to as "Jesus of Nazareth" (e.g., Mark 10:47). Jesus' neighbors in Nazareth refer to him as "the carpenter, the son of Mary and brother of James and Joses and Judas and Simon" (Mark 6:3), "the carpenter's son" (Matthew 13:55),[46] or "Joseph's son" (Luke 4:22).[47] In John, the disciple Philip refers to him as "Jesus son of Joseph from Nazareth" (John 1:45). - Jesus (Wikipedia)