2. When Men Are Said To Bless God, as in Ps 103:1, 2; 145:1-3.

We are not, then, to suppose the divine Being, who is over all, and in himself blessed forevermore, is capable of receiving any augmentation of his happiness from any of the creatures which he has made: such a supposition, as it would imply something of imperfection in the divine nature, must ever be rejected with abhorrence; and therefore, when creatures bless the adorable Creator, they only ascribe to him that praise and dominion, and honor, and glory, and blessing which it is equally the duty and joy of his creatures to render. So that blessing on the part of man is an act of thanksgiving to God for his mercies, or rather for that special mercy which, at the time, occasions the act of blessing; as for food, for which thanks are rendered to God, or for any other good.