Psalms 46:4-5

God’s presence in Jerusalem was similar to that of a refreshing, life-giving river rather than the raging sea (Psalms 46:3; cf. Isaiah 8:6; Isaiah 33:21). Old Jerusalem, of course, had no literal river flowing through it (cf. Revelation 22:1-2). Because God abode in the city, it enjoyed great security. As time passed, however, God left the city because His people forsook Him (Ezekiel 8; Ezekiel 10).

"The imagery of the river and the streams is reminiscent of the description of the river with its four branches in the passage on the Garden of Eden (Genesis 2:10-14). The restoration to the presence of God is likened to a restoration to the Garden of Eden of all those who are members of the City of God." [Note: VanGemeren, p. 352. See also his appendix on Zion theology, pp. 354-57.]