The Messiah would be empowered for the judgment of mankind.
OT Prophecy NT Fulfillment
Isaiah 49:2c
[2] And he hath made my mouth like a sharp sword; in the shadow of his hand hath he hid me, and made me a polished shaft; in his quiver hath he hid me.
John 5:22–29
[22] For the Father judgeth no man, but hath committed all judgment unto the Son:
[23] That all men should honour the Son, even as they honour the Father. He that honoureth not the Son honoureth not the Father which hath sent him.
[24] Verily, verily, I say unto you, He that heareth my word, and believeth on him that sent me, hath everlasting life, and shall not come into condemnation; but is passed from death unto life.
[25] Verily, verily, I say unto you, The hour is coming, and now is, when the dead shall hear the voice of the Son of God: and they that hear shall live.
[26] For as the Father hath life in himself; so hath he given to the Son to have life in himself;
[27] And hath given him authority to execute judgment also, because he is the Son of man.
[28] Marvel not at this: for the hour is coming, in the which all that are in the graves shall hear his voice,
[29] And shall come forth; they that have done good, unto the resurrection of life; and they that have done evil, unto the resurrection of damnation.
Tanakh – Neviim – Isaiah 49:2c
[49:2] And He hath made my mouth like a sharp sword, in the shadow of His hand hath He hid me; and He hath made me a polished shaft, in His quiver hath He concealed me.
Hebrew OT – Isaiah 49:2c
[49:2] וַיָּשֶׂם פִּי כְּחֶרֶב חַדָּה
בְּצֵל יָדוֹ הֶחְבִּיאָנִי
וַיָּשִׂימֵנִי לְחֵץ בָּרוּר
בְּאַשְׁפָּתוֹ הִסְתִּירָנִי