Mark 9:23 Yeshua said to him, “What do you mean, `if you can’? Everything is possible to someone who has trust(belief)!”
The bible in Romans 4:17 says (as it is written, “I have made you a father of many nations”) in the presence of Him whom he believed–God, who gives life to the dead and calls those things which do not exist as though they did;
Hebrews 11:1-3
1 Trusting(faith) is being confident of what we hope for, convinced about things we do not see. 2 It was for this that Scripture attested the merit of the people of old. 3 By trusting, we understand that the universe was created through a spoken word of God, so that what is seen did not come into being out of existing phenomena. (Complete Jewish Bible)