'Whet' in the Bible

You shall teach them diligently to your children [impressing God’s precepts on their minds and penetrating their hearts with His truths] and shall speak of them when you sit in your house and when you walk on the road and when you lie down and when you get up.

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.

If he turn not, he will whet his sword; he hath bent his bow, and made it ready.

Who whet their tongue like a sword, and bend their bows to shoot their arrows, even bitter words:

If the iron be blunt, and he do not whet the edge, then must he put to more strength: but wisdom is profitable to direct.