Thou didst cleave the fountain and the flood: thou driedst up mighty rivers.
Ver. 15. Thou didst cleave the fountain and the flood] i.e. Fontium et torrentium scatebras et latebras, thou didst set the rock abroach once and again, Exodus 17:6 Numbers 20:11, rescissis ipsius naturae legibus.
Thou driedst up mighty rivers] Jordan (wherein some say met two great rivers, Jor and Dan), whereunto the Chaldee here addeth Arnon and Jabbok, whereof see Numbers 21:14 Deuteronomy 2:37 .