You cannot prove to anyone that Jehovah is God. Faith is born in ourselves and by our own undestanding letting the bible and holy spirit guide us towards the truth of Jehovah's ways. Then gathering with others that are in agreement with us as a body in unity with Jesus through whom we reach Jehovah.
How many one here can say they have enough faith in God on which to build a trust in a congregation with others together again?
Reniaa