Psalms 115:18 - Albert Barnes' Notes on the Bible

But we will bless the Lord ... - While life lasts; now and ever onward. Our lives are spared; and while those lives shall be continued they shall be spent in praise. We will transmit the praise to future times; and when we are dead, the voice of praise shall be prolonged by those who come after us. It may be added here that we have now higher and clearer views of the grave and of the future world than the psalmist had, and that though it is certain that our voices of praise must be stilled by death, yet in another world we shall continue the work of praise in strains more lofty than here, and in a continuance of service that shall never end. The grave is, indeed, before us all; but so is also heaven, if we belong to those who truly fear the Lord, and who sincerely worship him through Christ Jesus.