Exodus 1:16 (KJV)
And he said When ye do the office of a midwife to the Hebrew women and see them upon the stools if it be a son then ye shall kill him but if it be a daughter then she shall live
And he said When ye do the office of a midwife to the Hebrew women and see them upon the stools if it be a son then ye shall kill him but if it be a daughter then she shall live