Can you elaborate on God coming in every generation?

[Padanamaskaram Swami, A Christian devotee asked the following question:
You say God comes in every generation. Can you elaborate on that a little? Because my idea of "generation" is a life-span but they over-lap each other? Also, am "I" going to see the incarnation personally?!? Or is He off somewhere in Africa?! Tibet?! And if so- wouldn't He choosing one area of the world be unfair to the rest of the world?! Jesus had to come to the Jewish world because the prophecies said He would and that He would be a seed of Abraham. So I understand why He was there (in Israel) and not in the USA or Brazil.- Anil]

Swami replied: The logic behind the concept that the human incarnation comes in every human generation is that no deserving human being of any human generation should miss the opportunity to meet the human incarnation. It is not necessary that every human being of every human generation should meet the human incarnation. Even if the opportunity is created for every human being to meet the human incarnation, majority of the human beings does not recognize the human incarnations due to ego and jealousy based on the repulsion between common media (human forms). The deserving human being alone meets the human incarnation by the will of God. The meeting is based on the deserving state of the devotee and the consequential grace of God. You cannot blame God as partial for selecting some human beings only for the meeting. Human incarnation is available to all the human beings. Only those human beings, who conquered ego and jealousy towards co-human forms and got convinced about the concept of human incarnation, can meet God in human form, whatever may be the country. The common medium is convenient for God to preach the divine knowledge to devotees and clarify all their doubts. If you miss this chance in this world, you miss the chance everywhere (Ihachet avedit... Veda). The reason is that after death, you take the energetic body to go to the upper world and you will reject the divine Father there also (since God is in the energetic form there) based on the same principle of repulsion between common media playing there also. If you miss Jesus here, you will miss the divine Father there also!