Faith Confidence and Trust

Faith is a general word = ´sraddh¯a – the soul’s belief in the Divine’s existence, wisdom, power, love and grace—confidence and trust are aspects of faith and results of it.
Confidence is a feeling of sureness that the Divine will hear when sincerely called and help and that all the Divine does is for the best.
Trust is the mind’s and heart’s complete reliance on the Divine and its guidance and protection.

Ref: Letters on Yoga II