Psalms 28:6 - Ellicott's Commentary On The Whole Bible

This burst of thanksgiving, breaking in on the poet’s prayer, has led to the supposition that an interval elapsed between the composition of the former part of the psalm and this verse, and that the writer takes up his pen to record the answer his supplications have received. Others regard the psalm as composed by the union of two distinct pieces. Others again treat Psalms 28:6 as an interpolation. It certainly seems discordant with the rhythm as well as with the sense of the rest.