2 Samuel 14

4And when the woman of Tekoah spake to the king, she fell on her face to the ground, and did obeisance, and said, Help, O king.
11Then said she, I pray thee, let the king remember the LORD thy God, that thou wouldest not suffer the revengers of blood to destroy any more, lest they destroy my son. And he said, As the LORD liveth, there shall not one hair of thy son fall to the earth.