Isaiah 40:8 NIV

1 Peter 1:25 NIV
    but the word of the Lord endures forever.” And this is the word that was preached to you.

Isaiah 55:10-11 NIV
As the rain and the snow come down from heaven, and do not return to it without watering the earth and making it bud and flourish, so that it yields seed for the sower and bread for the eater, so is my word that goes out from my mouth: It will not return to me empty, but will accomplish what I desire and achieve the purpose for which I sent it.

Mark 13:31 NIV
Heaven and earth will pass away, but my words will never pass away.

Matthew 24:35 NIV
Heaven and earth will pass away, but my words will never pass away.

Matthew 5:18 NIV
For truly I tell you, until heaven and earth disappear, not the smallest letter, not the least stroke of a pen, will by any means disappear from the Law until everything is accomplished.

Psalm 119:89-91 NIV
Your word, Lord, is eternal; it stands firm in the heavens. Your faithfulness continues through all generations; you established the earth, and it endures. Your laws endure to this day, for all things serve you.