(17) The angel of God.--In Genesis 16:7 it was "the angel of Jehovah" which appeared unto Hagar; here it is the angel of Elohim. It is impossible not to be struck with this exact use of the names of Deity. Hagar was then still a member of Abraham's family; here she is so no longer; and it is Elohim, and not Jehovah, the covenant God of the chosen race, who saves her.

Verse 17. - And God - Elohim; Hagar and Ishmael having now been removed from the care and superintendence of the covenant God to the guidance and providence of God the ruler of all nations (Keil) - heard the voice of the lad; - praying (Inglis), or weeping, ut supra - and the angel of God - Maleach Elohim; not Maleach Jehovah, as in Genesis 16:7-13, for the reason above specified (Hengstenberg, Quarry) - called to Hagar out of heaven, - it may be inferred there was no external appearance or theophaneia, such as was vouchsafed to her when wandering in the wilderness of Shut (Genesis 16:7) - and said unto her, What aileth thee (literally, What to thee?) Hagar? fear not; - so the word of Jehovah addressed Abram (Genesis 15:1), Isaac (Genesis 26:4), Daniel (Daniel 10:12), and John (Revelation 1:17) - for God hath heard the voice of the lad - i.e. the voice (perhaps the mute cry) of the lad's misery, and in that also the audible sob of Hagar's weeping. It is net said that either Ishmael or his mother prayed to God in their distress. Hence the Divine interposition on their behalf non quid a se peterent, sed quid servo suo Abrahae de Ismaele pollicitus foret, respexit (Calvin) - where he is - an ellipsis for from, or in, the place where he is; ἐκ τοῦ τόπου οὑ ἐστιν (LXX.); ex loco ubi est (Calvin); meaning either "in his helpless condition" (Keil), or out in the desolate wilderness, as contrasted with the house of Abraham (Calvin).

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.And God heard the voice of the lad,.... By which it appears that he cried also; but whether it was in prayer to God, or through the distress and misery he was in, is not certain; and, be it which it will, his cries came up into the ears of the Lord, and he had compassion on him, and supplied his wants, and delivered him out of his miserable condition:

and the angel of God called to Hagar out of heaven; not a created angel, but the eternal one, the Son of God, the Angel of the covenant, who appeared in the visible heavens, and called to Hagar from thence with an articulate voice, and so loud that she could hear him:

and said unto her, what aileth thee, Hagar? or, what has befallen thee? what is the matter with thee? why criest, why weepest thou? this he said, not as being ignorant of her case, but in order to relieve and comfort her:

fear not; distrust not the power and providence of God in taking care of thee and thy son; do not be afraid of the death of the child:

for God hath heard the voice of the lad where he is; though in a wilderness, and under one of the shrubs in it: God is everywhere, and he can hear the cries of men be they where they will, or in ever so desolate a condition: by this Hagar would know that her son was alive, that he had been crying, and God had heard his cry; he that regards the prayer of the destitute, Psalm 102:17, heard the cry of Ishmael under a shrub.