Psalms 115:13

He says, both the small with the great, by which circumstance he magnifies God’s paternal regard the more, showing that he does not overlook even the meanest and most despised, provided they cordially invoke his aid. Now, as there is no acceptance of persons before God, our low and abject condition ought to be no obstruction to our drawing near to him, since he so kindly invites to approach him those who appear to be held in no reputation. Moreover, the repetition of the word bless is intended to mark the uninterrupted stream of his loving-kindness. Should any prefer the past tense, he has blessed, the meaning will be, that the favor of God towards his people has continued for a long period, which ought to be a sure evidence of the perpetuity of his fatherly regard. This interpretation is strengthened by the subsequent verse, in which he says, that God would multiply the benefits which he had up to that time conferred upon them. For God’s liberality is an inexhaustible fountain, which will never cease to flow so long as its progress is not impeded by the ingratitude of men. And hence it will be continued to their posterity, because God manifests the grace and the fruit of his adoption even to a thousand generations.