Matthew 17:17
Then Jesus answering, said, O generation, faithless, and perverse! how long shall I be with you? how long shall I bear with you? bring him hither to me.
Matthew 17:20
Then said Jesus unto them, Because of your unbelief: for verily I say unto you, If ye have faith as a grain of mustard, ye shall say to this mountain, Remove from hence, thither, and it will remove; and nothing will be impossible for you.
Luke 1:20
And behold, thou shalt be dumb, and unable to speak, until that day when these things shall come to pass, because thou hast not believed my words, which shall be fulfilled at their exact time.
Luke 1:45
And blessed is she that hath believed; for there shall be a fulfilment of the things told her from the Lord.
John 1:17
For the law was given by Moses, but the grace and the reality came by Jesus Christ.
Romans 4:20
for he disputed not against the promise of God with unbelief; but was mighty in faith, giving glory to God;
1 Peter 3:15
but sanctify the Lord God in your hearts: and be always ready with your reply to every man who demands a reason respecting the hope which is in you with meekness and fear: