the head of the corner
The Head of the Corner, The Cornerstone
Isaiah 28:16 Therefore the Lord Yahweh says, “Behold, I lay in Zion for a foundation a stone, a tried stone, a precious cornerstone of a sure foundation. He who believes shall not act hastily.
Acts 4:11 He is ‘the stone which was regarded as worthless by you, the builders, which has become the head of the corner.’ 12 There is salvation in no one else, for there is no other name under heaven that is given among men, by which we must be saved!”