God is not silent

Isn't Christianity arrogant to state that it is the only way to God? A classic example used to convince everyone that they only see part of the truth is the story of the blind men and the elephant. Each man feels a different part of the elephant and so each makes a different conclusion about what the elephant is like. The moral of the story is that if all religions would realise that we are like the blind men seeing only part of the truth, the world would be a much better place. Tim Keller does a great job of showing why that principle doesn't work logically.

But another problem is that the elephant is silent and the men just have to do their best to work out what it is. What if the elephant opened it's mouth and described itself? We are not just left in the dark to make our best estimates of what God is like. God is not silent.
Psalm 50:3a Our God approaches, and he is not silent.

He has shown us exactly what he was like in Jesus.

Hebrews 1:1-3  In the past God spoke to our ancestors through the prophets at many times and in various ways, but in these last days he has spoken to us by his Son, whom he appointed heir of all things, and through whom also he made the universe. The Son is the radiance of God’s glory and the exact representation of his being, sustaining all things by his powerful word.