NSB(i)
31 But Israel, pursuing after a law of righteousness, has not attained to that law.
32 Why? It is because it was not based on the principle of faith, but on that of works. They have stumbled at the stumbling stone.
33 It is written: »Behold, I place in Zion a stone of stumbling and a rock of offence and he that believes on him will not be ashamed.« (Isaiah 8:14)