The flood, or river, to wit, Jordan. We, i.e. our nation, or our ancestors, in whose loins we then were, and the benefit of which ancient deliverance we at this day enjoy. See the like expressions Psalms 81:5 Hosea 12:4. The whole people of Israel are oft considered as one body, continued through all succeeding generations, united in the bond of the same covenant and worship, and in the possession of the same promises, and privileges, and blessings, and acted by one and the same spirit; and therefore several and contrary things may reasonably be ascribed to them, in regard of their several parts and ages, and what was done in one age may be imputed to another by virtue of their strict conjunction with the same body.
Related Commentaries of Psalms 66:6
Psalms 66:6
6 He turned the sea into dry land: they went through the flood on foot: there did we rejoice in him.