The OP asked for one sentence. And the Bible is indeed THE REVELATION OF JESUS CHRIST.
It is Jesus Christ who is revealed on every page of Scripture. The Father has made Him Creator, Savior, Lord, Judge, and King of kings. All power and authority in Heaven and earth have been handed over to Christ. The Church has been handed over to Him. Redeemed and restored Israel has been handed over to Him. The universe has been handed over to Him.
And after everything has been made subject to Christ for eternity, He will hand everything back to God the Father.
For he hath put all things under his feet. But when he saith all things are put under him, it is manifest that he is excepted, which did put all things under him. And when all things shall be subdued unto him, then shall the Son also himself be subject unto him that put all things under him, that God may be all in all. (1 Cor 15:27,28)