Luk_24:25-27 (NASB)

[25]And He said to them, "O foolish men and slow of heart to believe in all that the prophets have spoken!

[26]"Was it not necessary for the Christ to suffer these things and to enter into His glory?"

[27]Then beginning with Moses and with all the prophets, He explained to them the things concerning Himself in all the Scriptures.

From the beginning of time God has chosen to speak through men. He hand picked men to speak for Him and tell what His will was and what was to come in the future. He did that so that we would believe in Him and in all His written Words.

Jesus told His followers the following...

Joh_14:29 (NASB)

[29] "Now I have told you before it happens, so that when it happens, you may believe.

Afterward it did happen just as He said.

Joh_2:22 (NASB)

[22] So when He was raised from the dead, His disciples remembered that He said this; and they believed the Scripture and the word which Jesus had spoken.

"...to which you do well to pay attention..." ( 2Pe_1:19-21 )

Peter tells us that we would do well to pay attention to all that God has said. What God has said is true. What He has spoken will come to pass. Regardless of what we believe or how contrary it seems to us, God's Will, will be done on earth as it is in Heaven.

God does not take lightly the one who would try to change His words or speak for Him without being sent. ( Deu_18:14-22 ; Jer_23:1-40 ; Rev_22:18-19)