Why is he scared when he is not really very high up? But he hasn’t done it before so he doesn’t know what awaits!
If he could speak to someone who had climbed the tree before and jumped and survived and even enjoyed the experience, well then he would have the courage to jump!
But at the moment he sits and worries, how sad!
Perhaps he will find the courage to believe that it is nothing to be frightened of, perhaps he will trust the person calling him saying “Do not be afraid”?