'Words' in the Bible

Why doth this one thus speak evil words? who is able to forgive sins except one -- God?'

for whoever may be ashamed of me, and of my words, in this adulterous and sinful generation, the Son of Man also shall be ashamed of him, when he may come in the glory of his Father, with the holy messengers.'

And the disciples were astonished at his words, and Jesus again answering saith to them, 'Children, how hard is it to those trusting on the riches to enter into the reign of God!

the heaven and the earth shall pass away, but my words shall not pass away.