Strong H8150 שָׁנַן shânan · to sharpen

Deuteronomy

1. Deuteronomy 6:7
   And thou shalt teach them diligently unto thy children, and shalt talk of them when thou sittest in thine house, and when thou walkest by the way, and when thou liest down, and when thou risest up.
2. Deuteronomy 32:41
   If I whet my glittering sword, and mine hand take hold on judgment; I will render vengeance to mine enemies, and will reward them that hate me.