One
A company might have executives setting policy and strategy, engineers designing products, managers handling personnel and others handling various functions. They all do different things -- but if they're doing them with a shared underlying purpose, the company -- and the individuals in it -- will likely be successful. The Lord wants all human society to function in a similar way. We have different skills and individual loves, but if we all share a mutual love -- a love of serving others -- then society will function as one, will be a reflection of heaven and will be a good receptacle for the Lord's love. This can also happen within each of us, as we unify our talents and ideas around a central love. And in an abstract sense, it illustrates how a wide collection of varying ideas can be unified around a shared good intention. That is the kind of love pictured when “one” is used in the Bible, either as a specific number or in the sense of several people or objects “being one.” In more casual references -- when used to identify a specific person or object -- the meaning is relatively literal, and is connected to that person or object.
Scriptural Confirmations #73
73. 2. From the Prophets
The day of Jehovah of Hosts shall be upon everyone that is proud and haughty. In that day shall a man cast away his idols; when He arises to terrify the earth (Isaiah 2:12-21). Concerning the Last Judgment.
Jehovah of Hosts shall be exalted in judgment, and God that is holy shall be sanctified in justice (Isaiah 5:16-17). In the first part desolation is treated of (verses 3-15), afterwards the curse upon the evil (verses 18-30).
When thou shalt be visited of Jehovah God with thunder and with earthquake, and a great voice, with storm and tempest, and the flame of devouring fire (Isaiah 29:6).
It is called a day of vengeance (Isaiah 61:2).
Of the Lord's battle with the hells and of their subjugation, and thus of the redemption of the faithful (Isaiah 63:1-14).
As an east wind will I scatter them; I will regard them from the back and not from the face in the day of their calamity (Jeremiah 18:17).
They have been driven before thee; in the time of thine anger deal with them (Jeremiah 18:23).
Concerning the day of judgment, which is called the day of revenge, of vengeance, of ruin, of anger. See many places in the section on Redemption.