Jamieson, Fausset & Brown

peace-- (Psa 119:165). Compare the desire expressed by the same Messiah (Mat 23:37; Luk 19:42). river-- (Isa 33:21; Isa 41:18), a river flowing from God's throne is the symbol of free, abundant, and ever flowing blessings from Him (Eze 47:1; Zac 14:8; Rev 22:1). righteousness--religious prosperity; the parent of "peace" or national prosperity; therefore "peace" corresponds to "righteousness" in the parallelism (Isa 32:17).