let all flesh = all flesh shall, as in Psa_145:10; thus completing and perfecting the Structure above.
all flesh. Figure of speech Synecdoche (of the Part), App-6, put for all men.
holy. See note on Exo_3:5.
ever and ever. Many codices, with one early printed edition, here add: "And we will bless Jah: From henceforth even for ever, Praise ye Jah. "Compare Psa_115:18.