take on faith

take something on faith

to accept or believe something on the basis of little or no evidence. Please try to believe what I'm telling you. Just take it on faith. Surely you can't expect me to take a story like that on faith.
See also: faith, take

take somebody/something on faith

to believe someone or something without proof You will have to take it on faith that the information I am asking for is really important.
See also: faith, take