Romans 9:31-32

whereas Israel, [though always] pursuing the law of righteousness, did not succeed in fulfilling the law. [Is 51:1] And why not? Because it was not by faith [that they pursued it], but as though it were by works [relying on the merit of their works instead of their faith]. They stumbled over the stumbling Stone [Jesus Christ]. [Is 8:14; 28:16]