Where in the Bible do you find Jesus referring Jonah as his only Messiahship?

Answer # 1

The name Jonah only occurs in two places in biblical text and both are in the Old Testament 2Kings 14:25 and the book of Jonah

There is no written reference by Christ to the name Jonah in all the New Testament, and never to anyone as his Messiahship.

Answer # 1 Ends

In the New Testament [KJV] "Jonah" becomes "Jonas":

"A wicked and adulterous generation seeketh after a sign; and there shall be no sign given unto it, but the sign of the prophet JONAS..." (Matt.16:4 KJV).

(compare with the NIV): " A wicked and adulterous generation looks for a miraculous sign, but none will be given it except the sign of JONAH...".

Jesus' used the sign of Jonah [three days and three nights in the fish's belly; or in His case, three days and three nights in the grave - dead - in the belly of the earth]... raising from the dead in that period of time... as the ONLY PROOF OF HIS MESSIAHSHIP [that He, Jesus, was the Messiah for whom everyone at that time was looking].

The call for "a sign from heaven" came from the haughty, Faithless rulers of the people... the Pharisees. They too were looking for the Messiah... and if He was the one they were looking for -- they demanded that He quit pussy-footing around, step up and PROVE IT TO THEM!

"The Pharisees and Sadducees came to Jesus and tested Him by asking Him to show them a sign from heaven." (verse 1)

This "sign of Jonas" is also found in [Matt.12:38-41 & Luke 11:29-32].

In other Words: If Jesus failed to rise from the grave after three days and three nights [Jonah's sign] -- then HE WAS NOT THE MESSIAH!

And they [and we who are looking for Him, according to the prophecies] must look for another.

The "sign of Jonah [Jonas]" is the ONLY SIGN Jesus gives us [our wicked and adulterous generation... as well as theirs] as PROOF THAT HE IS THE MESSIAH.