Charles H. Spurgeon on Psalms 115:13

He says, both small and great, by which circumstance he magnifies God's paternal regard the more, showing that he does not overlook even the meanest and the most despised, provided they cordially seek 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. The repetition of the word "bless" is intended to mark the uninterrupted stream of his lovingkindness. John Calvin.