Generation
To “generate” something is to create it, and that idea underpins the meaning of a “generation” of people -- it is a group that was created together, at roughly the same time, from the same parents or group of parents. On a spiritual level, we can be “generators” by using what we know from the Lord to create ideas of how to be good, and also to create good actions based on those ideas -- what the Writings call things of faith and things of charity. In general, then, a “generation” in the Bible represents the spiritual ideas and activities created by a church -- with a “church” being anything from an individual believer to a group lasting thousands of years. “Generation” can also pick up specific meanings from context. For instance, when the Bible says the people of Israel were captive in Egypt for four generations, it means a state of temptation based on the meaning of “four.” When paired with “eternity,” meanwhile, “generations” represents ideas and actions surrounding love of serving others, with “eternity” representing things springing from love of the Lord. Finally, “generations and generations” is used in the Bible to represent forever.
Battle
War in the Word represents the combat of temptation when good loves are assaulted by evil loves or false ideas. The evil that attacks comes from one of the many societies of hell, and it operates by arousing a selfish love in our mind that is contrary to what we know is right. Then our selfish love attacks the love that nourishes the wish to be a good person, and there is war in our minds. This is represented by wars that the children of Israel fought in and around the land of Canaan, of which there is a long history in the old testament. The selfish loves abound in our minds from our heredity, and the good loves come along with our conscience as it develops. If we had no conscience we couldn't be tempted; we would immediately follow the wishes of our selfishness and give in. But then the end result is that we are in slavery to the hells and will do whatever they want.
(Odkazy: Arcana Coelestia 1659 [3], 1664, 1683, 1788 [2])