This is the 4950th most frequent Turkish word.
geldiğine
"That (someone/something) has come."
In this sentence, 'geldiğine' is used to indicate a conditional clause referring to the happiness due to someone coming to an event.
Arkadaşının doğum günü partisine geldiğine sevindim.
I am glad that you came to your friend's birthday party.
Here, 'geldiğine' conveys a completion of an action, specifically trust being restored.
Şirkete olan güvenin geldiğine inanıyorum.
I believe that your trust in the company has returned.
The word 'geldiğine' is used in this sentence to infer information from someone's arrival.