There may be no evidence of Holy Tongues spoken by Jesus, but they are certainly a gift from Holy Spirit.
Verily, verily, I say unto you, He that believeth on me, the works that I do shall he do also; and greater works than these shall he do; because I go unto my Father.
""Then Peter said unto them, Repent "(have a change of mind)", and be baptized"" "(i.e. immersed)" every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost." "- with the evidence of speaking in tongues - ACTS 2:38.
Today, we have the Word of God....we do not need the "speaking of tongues...."
Besides, the "speaking of tongues" was for the Jews....
In the Law it is written:
“With other tongues
and through the lips of foreigners
<<<<<I will speak to this people,>>>>>
but even then they will not listen to me,
says the Lord.”