“So Abraham rose early in the morning and took bread and a skin of water and gave them to Hagar, putting them on her shoulder, and gave her the boy, and sent her away.” Gen 21:14(a)
Abraham acts quickly, arising early in the morning, and this is not the first time. With the circumcision of himself and his household, he did not put off the act as we may based upon our fear of pain; but rather he did this the same day (Gen. 17:23), and we know he had no small household (See Gen. 14:14).
Likewise, here we see the putting out of Hagar and Ishmael once he knew it was God’s will (21:12)
In Genesis 22, we see Abraham arise early yet again when he receives God’s call to go to Moriah where he will be tested with the offering of Isaac (Gen. 22:3).
Thus we should learn that when we perceive that God wants us to take action, we should act quickly; for the sooner we act, the sooner His promises will be fulfilled.