Charles H. Spurgeon on Psalms 115:12

The Lord hath been mindful of us, or "Jehovah hath remembered us." His past mercies prove that we are on his heart, and though for the present he may afflict us, yet he does not forget us. We have not to put him in remembrance as though he found it hard to recollect his children, but he hath remembered us and therefore he will in future deal well with us. He will bless us. The word "us" is supplied by the translators, and is superfluous, the passage should run, He will bless; he will bless the house of Israel he will bless the house of Aaron. The repetition of the word "bless" adds great effect to the passage. The Lord has many blessings, each one worthy to be remembered, he blesses and blesses and blesses again. Where he has once bestowed his favour he continues it; his blessing delights to visit the same house very often and to abide where it has once lodged. Blessing does not impoverish the Lord: he has multiplied his mercies in the past, and he will pour them forth thick and threefold in the future. He will have a general blessing for all who fear him, a peculiar blessing for the whole house of Israel, and a double blessing for the sons of Aaron. It is his nature to bless, it is his prerogative to bless, it is his glory to bless, it is his delight to bless; he has promised to bless, and therefore be sure of this, that he will bless and bless and bless without ceasing.