John Calvin's Bible Commentary
Psalms 105:12
12.When they were but very few in number The prophet here recounts the benefits which God had conferred upon the holy fathers from the commencement, to manifest that even long before the deliverance from Egypt, the covenant was not ineffectual. The great object aimed at in this recital, is to show that ever since God took Abraham under his protection, he cherished him in a wonderful manner, and also that his fatherly love and care were displayed in maintaining and defending the other two patriarchs. When it is said, that they were but very few in number, the power of God by this circumstance is not only magnified, but the cause why he was so beneficent towards them is also pointed out. We must then, in the first place, attend to this, that the prophet, lest the Jews should arrogate anything to themselves, expressly declares, that their fathers had experienced the divine favor, even when they were feeble and despised, wandering from place to place, in every respect poor and miserable according to the flesh. Thus also Moses reproaches them,
“The Lord did not set his love upon you, nor choose you, because ye were more in number than any people; for ye were the fewest of all people; but because the Lord loved you.” Deuteronomy 7:7,
In short, in the choosing of this people, no regard was had either to number, or to any excellence whatever. There was only the house of Abraham, and yet it was barren. Isaac was compelled to banish to a distance from him one of his two sons, and he saw the other cut off from his family. The house of Jacob was indeed more fruitful, but it was nevertheless of a low condition. Besides, they were not only ignoble and despised when sojourning in a strange land, but famine, and the want of other things also, compelled them frequently to go from one place to another. All these things being taken into view, the consideration of human worth falls to the ground, and it is clearly seen, that all the blessings which God had bestowed upon them flowed from no other fountain than his own free love. And the cause of this love is not to be sought for out of himself. If the Holy Spirit is so careful in magnifying the grace of God in these earthly blessings, how much more must he observe this rule, when the subject of which he speaks is the heavenly inheritance! When it is said, that they walked about from nation to nation, this intimates the more plainly how wonderfully the divine protection was displayed in preserving them. Had they found any quiet nest in which to repose, such comfort would have been a notable sign of the divine goodness; but when they were as exiles in divers countries, and were driven from one place to another with bitter scorn, as chaff is driven about by the wind, the guardianship which God exercised over them shone forth much more conspicuously. Since their life everywhere hung only by a thread, and the changing of their place of sojourn exposed them from time to time to fresh injuries, it is evident that it was the divine power alone which preserved them in safety.