The opposite of Faith is FEAR (not doubt). Fear paralyzes. Faith produces. Without Faith it is impossible to please God.
17 And when they saw him they worshiped him, but some doubted. 18 And Jesus came and said to them, “All authority in heaven and on earth has been given to me. 19 Go therefore and make disciples of all nations, baptizing them in[b] the name of the Father and of the Son and of the Holy
Spirit, 20 teaching them to observe all that I have commanded you. And behold, I am with you always, to the end of the age.” Matthew 28:17-20