Faith.
A word for full of confidence is, confident.
confidence
The word confidence is a noun, a singular, common, abstract noun; a word for a belief or a feeling.
The word "self-confidence" is hyphenated.
There is no word for "Jewish confidence". But if you are asking for the Hebrew word for confidence, it is bitakhon (ביטחון). If you are asking for the Yiddish word for confidence, it depends on the dialect, but one way is tzufarzicht (צופֿרזיכט).
his belief about religion he had more confidence in tomorrow than today.
confidence = confiance
The root word for confidence is "fid" which means faith to everyone and everything.
tou must have confidence in yourself !
Now you may proceed with confidence. The confidence man is a con-man. NOW have I gained your confidence?
Yes, the word 'faith' is a noun, a singular, common, abstract noun; a word for complete trust or confidence in someone or something; a strongbelief in God or in the doctrines of a religion; a word for a thing.
In a religious context, it could be earnest, pious, or devout. With regard to "keeping faith", it could be loyal, steadfast, or resolute.