78:16 He caused streams to flow from the rock,
and made the water flow like rivers.
78:44 He turned their rivers into blood,
and they could not drink from their streams.
107:33 He turned 1 streams into a desert,
springs of water into arid land,
1 tn The verbal form appears to be a preterite, which is most naturally taken as narrational. (The use of prefixed forms with vav [ו] consecutive in vv. 36-37 favor this.) The psalmist may return to the theme of God’s intervention for the exiles (see vv. 4-22, especially vv. 4-9). However, many regard vv. 33-41 as a hymnic description which generalizes about God’s activities among men. In this case it would be preferable to use the English present tense throughout (cf. NEB, NRSV).