Isaiah 19:24

In that day shall Israel be the third -That is, the three shall be united as one people. Instead of being rival, hostile, and contending kingdoms, they shall be united and friendly; and instead of having different and jarring religions, they shall all worship the same God. The prophecy rather refers to the spread of the true religion, and the worship of the true God, than to a political or civil alliance. Even a blessing -It shall be a source of blessing, because from Judea the true religion would extend into the other lands. In the midst of the land -That is, “the united land” - composed of the three nations now joined in alliance.