gain somebody's confidence
earn somebody's confidence
win somebody's confidence

I set myself to win his confidence in a new way.

We have been able to win the people's confidence with our performance.

We want only to win the confidence of the whole human race.

It was better to win his confidence with a straight start.

"We're in a race against time to win the trust and confidence of the people."

I can win their confidence - so quick that all will be very easy.

We have to win the confidence of public opinion in Europe.

My only plan was to win his confidence and find some way to persuade him to let me go.

The goal is to win the confidence of the suspect.

We must try to win the confidence of the people.