'Keystone' in the Bible

From him will come the keystone, from him the nail, from him the bow of war, from him will come every ruler;

Resting on the base of the Apostles and prophets, Christ Jesus himself being the chief keystone,

Because it is said in the Writings, See, I am placing a keystone in Zion, of great and special value; and the man who has faith in him will not be put to shame.