Mark 13:31 in the King James Version
Heaven and earth shall pass away: but my words shall not pass away.
Context
30 Most certainly I say to you, this generation will not pass away until all these things happen.
31 Heaven and earth will pass away, but my words will not pass away.
32 “But of that day or that hour no one knows—not even the angels in heaven, nor the Son, but only the Father.