G0204–ἀκρογωνιαῖος–akrogōniaios

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

ἀκρογωνιαίου akrogōniaiou “[the] cornerstone”

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.

ἀκρογωνιαῖον akrogōniaion “cornerstone”