Matthew 17:17
Then Jesus answering said, Unbelieving and perverse generation! How long shall I be with you? How long shall I bear with you? Bring him hither to me.
Matthew 17:20
And he said to them, Because of your want of faith. For truly do I say to you, If ye have faith as a grain of mustard, ye shall say to this mountain, Remove hence to yonder place, and it will remove; and nothing will be impossible to you.
Luke 1:20
And lo! thou shalt be silent, and not able to speak, until the day when these things shall come to pass, because thou didst not believe my words, which will be fulfilled in their season.
Luke 1:45
And blessed is she who hath believed that there will be an accomplishment of those things which were told her from the Lord.
John 1:17
For the Law was given through Moses; grace and truth came through Jesus Christ.
Romans 4:20
nor did he waver in respect to the promise of God through unbelief, but was strong in faith, giving glory to God;
1 Peter 3:15
but sanctify Christ as Lord in your hearts. And be ready always to give an answer to every one that asketh you a reason of the hope that is in you, but with meekness and fear;