A river — This may design the gracious presence, and blessing of the Lord, which is frequently described under the name of waters. Make glad — Shall not barely preserve it from danger, but give great occasion for rejoicing and thanksgiving. The city — Jerusalem, the place where God's holy tabernacle is settled.
Related Commentaries of Psalms 46:4
Psalms 46:4
4 There is a river, the streams whereof shall make glad the city of God, the holy place of the tabernacles of the most High.