G2435–ἱλαστήριος–hilastērios

whom God has set forth a mercy-seat, through faith in his blood, for [supplied: the] shewing forth of his righteousness, in respect of the passing by the sins that had taken place before, through the forbearance of God;

ἱλαστήριον hilastērion “a propitiation”

and above over it the cherubim of glory shadowing the mercy-seat; concerning which it is not now [supplied: the time] to speak in detail.

ἱλαστήριον, hilastērion “mercy seat,”