There was no Palestine until the British coined the term in 1917 from the Roman Word “Palestina”, which refered to the Philistines. Just as there was no country called Jordan until the British coined the term “The Hashemite Kingdom of Transjordan, also in 1917. Also, Jesus was not Palestinian—He was Jewish.
Until the 1960s, Palestinian was used alone to mean Jew, except when it additionally specified Palestinian Arab. I have seen Jewish ID cards from before the State of Israel that identify the holder as Palestinian. There might have been paper money issued by Jews with Palestine on it, IIRC.