Psalms 66:5-6

Come and see the works of God, &c. Inquire after and consider seriously what works of stupendous power God has shown in the earth, in regard to the human race, and on their account. He turned the sea, &c. He opened a passage for our fathers through the sea, so that they walked as on dry land, Exodus 14:16; and also led them dry-shod through the river Jordan, when it was so full of water that it overflowed its banks. There did we rejoice in him That is, our nation, or our ancestors, in whose loins we then were, and the benefit of which ancient deliverance we at this day enjoy. The whole people of Israel are here, and in many other parts of Scripture, considered as one body, continued through all succeeding generations, united in the bonds of the same covenant and worship, and in the possession of the same promises, privileges, and blessings, and influenced by one and the same spirit. Hence several and contrary things may reasonably be ascribed to them, in regard of their several ages; and what was done in one age may be imputed to another, by virtue of their close conjunction with the same body.