Arise, lift up the lad,.... She had set herself down at some distance, and now she is bid to rise up and go to the place where she had left her son, and raise aim up from the ground, on which he lay along:

and hold him in thine hand: or take hold on him with thine hand, and hold him up with it, he being so weak that he could not sit up without being supported:

for I will make him a great nation: which is a renewal of a promise before made both to her and to Abraham, Genesis 16:10; and by this Hagar is assured that he would recover and live, and become a man and the father of children, who in time would become a great nation; See Gill on Genesis 16:10, Genesis 17:20, Genesis 21:13, this shows that the Angel of God here speaking is God himself, or a divine Person, since none but he could make him a great nation.

Arise, lift up the lad, and hold him in thine hand; for I will make him a great nation.

21:14-21 If Hagar and Ishmael had behaved well in Abraham's family, they might have continued there; but they were justly punished. By abusing privileges, we forfeit them. Those who know not when they are well off, will be made to know the worth of mercies by the want of them. They were brought to distress in the wilderness. It is not said that the provisions were spent, or that Abraham sent them away without money. But the water was spent; and having lost their way, in that hot climate Ishmael was soon overcome with fatigue and thirst. God's readiness to help us when we are in trouble, must not slacken, but quicken our endeavours to help ourselves. The promise concerning her son is repeated, as a reason why Hagar should bestir herself to help him. It should engage our care and pains about children and young people, to consider that we know not what great use God has designed them for, and may make of them. The angel directs her to a present supply. Many who have reason to be comforted, go mourning from day to day, because they do not see the reason they have for comfort. There is a well of water near them in the covenant of grace, but they are not aware of it, till the same God that opened their eyes to see their wound, opens them to see their remedy. Paran was a wild place, fit for a wild man; such as Ishmael. Those who are born after the flesh, take up with the wilderness of this world, while the children of the promise aim at the heavenly Canaan, and cannot be at rest till they are there. Yet God was with the lad; his outward welfare was owing to this.