Because it is contained in Scripture, "Behold, I lay in Zion a chief cornerstone, chosen, and precious: He who believes in him will not be disappointed."
Shall not be confounded. — These words are quoted from Isaiah 28:16; but rather more from the Septuagint than from the Hebrew text. The latter we translate, He that believeth shall not make haste-he who comes to God, through Christ, for salvation, shall never be confounded; he need not haste to flee away, for no enemy shall ever be able to annoy him.