David was given a hint and he took it, viz. (I Samuel 17:36) "Both the lion and the bear has your servant slain." Why then should I fear (Goliath, I) who have killed these (other) wild beasts? It must be that something is destined to transpire in Israel and that they are destined to be saved by me! Mordechai was given a hint and he took it, viz.
David Recognized His and Acted on It with Confidence
Mekhilta Tractate Amalek 2:34