Devotee (1): What is the relationship between Lord Kṛṣṇa and Lord Jesus Christ?
Prabhupāda: Oh, that you know. What do you ask me? What is Lord Jesus Christ? Don't you know?
Devotee (1): The son of God.
Prabhupāda: Yes. Therefore relationship is father and son. But there is no difference between father and son. Both of them are authorized. Just like your father, and if you are a trustworthy son of your father, then the work done by your father and by you is the same.