Middle voice from the same as G2436; to {conciliate} that {is} (transitively) to atone for ({sin}) or (intransitively) bepropitious: - be {merciful} make reconciliation for.
{atonement}that {is} (concretely) an expiator: - propitiation.
Verse
Matrix
Luk 18:13And the publican, standing afar off, would not lift up so much as his eyes unto heaven, but smote upon his breast, saying, God be mercifulG2433 to me a sinner.
Heb 2:17Wherefore in all things it behoved him to be made like unto his brethren, that he might be a merciful and faithful high priest in things pertaining to God, to make reconciliation forG2433 the sins of the people.