And he did not many mighty works there because of their unbelief.
Mark 6:5
And he could there do no mighty work, save that he laid his hands upon a few sick folk, and healed them.
Mark 6:6
And he marvelled because of their unbelief. And he went round about the villages, teaching.
Luke 4:25-29
25
But I tell you of a truth, many widows were in Israel in the days of Elias, when the heaven was shut up three years and six months, when great famine was throughout all the land;
26
But unto none of them was Elias sent, save unto Sarepta, a city of Sidon, unto a woman that was a widow.
27
And many lepers were in Israel in the time of Eliseus the prophet; and none of them was cleansed, saving Naaman the Syrian.
28
And all they in the synagogue, when they heard these things, were filled with wrath,
29
And rose up, and thrust him out of the city, and led him unto the brow of the hill whereon their city was built, that they might cast him down headlong.
Romans 11:20
Well; because of unbelief they were broken off, and thou standest by faith. Be not highminded, but fear:
Hebrews 3:12-19
12
Take heed, brethren, lest there be in any of you an evil heart of unbelief, in departing from the living God.
13
But exhort one another daily, while it is called To day; lest any of you be hardened through the deceitfulness of sin.
14
For we are made partakers of Christ, if we hold the beginning of our confidence stedfast unto the end;
15
While it is said, To day if ye will hear his voice, harden not your hearts, as in the provocation.
16
For some, when they had heard, did provoke: howbeit not all that came out of Egypt by Moses.
17
But with whom was he grieved forty years? was it not with them that had sinned, whose carcases fell in the wilderness?
18
And to whom sware he that they should not enter into his rest, but to them that believed not?
19
So we see that they could not enter in because of unbelief.
Hebrews 4:6-11
6
Seeing therefore it remaineth that some must enter therein, and they to whom it was first preached entered not in because of unbelief:
7
Again, he limiteth a certain day, saying in David, To day, after so long a time; as it is said, To day if ye will hear his voice, harden not your hearts.
8
For if Jesus had given them rest, then would he not afterward have spoken of another day.
9
There remaineth therefore a rest to the people of God.
10
For he that is entered into his rest, he also hath ceased from his own works, as God did from his.
11
Let us labour therefore to enter into that rest, lest any man fall after the same example of unbelief.