Faith is the currency through which we purchase things in the Kingdom. Everything is made available to you by grace, but accessed through faith.
Hebrews 11:28-29 KJV
Through faith he kept the passover, and the sprinkling of blood, lest he that destroyed the firstborn should touch them. [29] By faith they passed through the Red sea as by dry land : which the Egyptians assaying to do were drowned.
Image source:
http://www.eccfellowship.org/sermons/sermon/2016-11-13/the-challenges-of-faith