O God, when thou wentest forth before thy people, when thou didst march through the wilderness; Selah: O God, when thou wentest forth - This and the following verse most manifestly refer to the passage of the Israelites through the wilderness.
Related Commentaries of Psalms 68:7
Psalms 68:7
7 O God, when thou wentest forth before thy people, when thou didst march through the wilderness; Selah: