Psalms 83:5

"Since they have imagined with one consent; together against Thee have they disposed a testament" (ver. 5): as though they could be the stronger. In fact, "a testament" is a name given in the Scriptures not only to that which is of no avail till the death of the testators, but every convenant and decree they used to call a testament. For Laban and Jacob made a testament, which was certainly to have force between the living; and such cases without number are read in the words of God. Then he begins to make mention of the enemies of Christ, under certain proper names of nations; the interpretation of which names sufficiently indicates what he would have to be understood. For by such names are most suitably figured the enemies of the truth. "Idumaeans," for instance, are interpreted either "men of blood," or "of earth." "Ismaelites," are "obedient to themselves," and therefore not to God, but to themselves. "Moab," "from the father;" which in a bad sense has no better explanation, than by considering it so connected with the actual history, that Lot, a father, by the illicit intercourse procured by his daughter, begat him; since it was from that very circumstance he was so named. Good, however, was his father, but as "the Law is good if one use it lawfully," not impurely and unlawfully. "Hagarens," proselytes, that is strangers, by which name also are signified, among the enemies of God's people, not those who become citizens, but those who persevere in a foreign and alien mind, and when an opportunity of doing harm occurs, show themselves. "Gebal," "a vain valley," that is, humble in pretence. […]

Against your covenant they have made their arrangements. You spoke through the prophets; and they through Manichaeus, Marcion, Arius, and Valentinus.

For they have taken counsel with one accord together. Unhappy are we, unhappy the people of God: it cannot have as great a concord in what is good as the wicked have in what is evil. Against you they have arranged a covenant: the tabernacles of the Edomites and the Ishmaelites. See the mysteries of the names. The tabernacles of the Edomites and the Ishmaelites, Moab and the Hagarenes, Gebal, and Ammon, and Amalek, and the foreigners with them that dwell at Tyre: for Asshur also is come with them, they are become a help to the sons of Lot.

For they have consulted together with one consent,....

And shall not the church's friends be unanimous in serving her interests? If Herod and Pilate are made friends, that they may join in crucifying Christ, surely Paul and Barnabas, Paul and Peter, will soon be made friends, that they may join in preaching Christ. What it is that is aimed at in this confederacy.