The Palms of the Messiah would be a witness.
OT Prophecy NT Fulfillment
Isaiah 49:16
"Behold, I have graven thee upon the palms of my hands; thy walls are continually before me."
John 20:25–28
[25] The other disciples therefore said unto him, We have seen the Lord. But he said unto them, Except I shall see in his hands the print of the nails, and put my finger into the print of the nails, and thrust my hand into his side, I will not believe.
[26] And after eight days again his disciples were within, and Thomas with them: then came Jesus, the doors being shut, and stood in the midst, and said, Peace be unto you.
[27] Then saith he to Thomas, Reach hither thy finger, and behold my hands; and reach hither thy hand, and thrust it into my side: and be not faithless, but believing.
[28] And Thomas answered and said unto him, My Lord and my God.
Tanakh – Neviim – Isaiah 49:16
"Behold, I have graven thee upon the palms of My hands; thy walls are continually before Me."
Hebrew OT – Isaiah 49:16
[49:16] הֵן עַל־כַּפַּיִם חַקֹּתִיךְ
חוֹמוֹתַיִךְ נֶגְדִּי תָּמִיד