Matthew 5:18
For verily I say unto you, Till heaven and earth pass, one
jot or one tittle shall in no wise pass from the law, till all be fulfilled
Proverbs 30:5-6 ESV
Every word of God proves true; he is a shield to those who take refuge in him.
Isaiah 40:8 ESV
The grass withers, the flower fades, but the word of our God will stand forever.
Matthew 24:35 ESV
Heaven and earth will pass away, but my words will not pass away.
Psalm 12:6-7 ESV
The words of the Lord are pure words, like silver refined in a furnace on the ground, purified seven times. You, O Lord, will keep them; you will guard us from this generation forever.
The manuscripts of the Bible have been preserved. Any variations are minor and does not change the message of the Bible.
There is no need my friend, to restore what has not been lost.