καρδιογνώστης G2589
kardiognṓstēs · kar-dee-og-noce'-tace · Noun Masculine
from καρδία and γινώσκω; a heart-knower:--which knowest the hearts.
2 Occurrences in the King James Bible
Acts 1:24And they prayed, and said, Thou, Lord, which knowest the hearts of all men, shew whether of these two thou hast chosen,
Acts 15:8And God, which knoweth the hearts, bare them witness, giving them the Holy Ghost, even as he did unto us;