Wickedness and unbelief

1. 1 Ne. 4: 13
   13 Behold the Lord slayeth the wicked to bring forth his righteous purposes. It is better that one man should perish than that a nation should dwindle and perish in unbelief.
2. 2 Ne. 32: 7
   7 And now I, Nephi, cannot say more; the Spirit stoppeth mine utterance, and I am left to mourn because of the unbelief, and the wickedness, and the ignorance, and the stiffneckedness of men; for they will not search knowledge, nor understand great knowledge, when it is given unto them in plainness, even as plain as word can be.
3. Alma 50: 22
   22 And those who were faithful in keeping the commandments of the Lord were delivered at all times, whilst thousands of their wicked brethren have been consigned to bondage, or to perish by the sword, or to dwindle in unbelief, and mingle with the Lamanites.
4. Hel. 4: 25
   25 Therefore the Lord did cease to preserve them by his miraculous and matchless power, for they had fallen into a state of unbelief and awful wickedness; and they saw that the Lamanites were exceedingly more numerous than they, and except they should cleave unto the Lord their God they must unavoidably perish.
5. Hel. 6: 34
   34 And thus we see that the Nephites did begin to dwindle in unbelief, and grow in wickedness and abominations, while the Lamanites began to grow exceedingly in the knowledge of their God; yea, they did begin to keep his statutes and commandments, and to walk in truth and uprightness before him.
6. 4 Ne. 1: 34
   34 Nevertheless, the people did harden their hearts, for they were led by many priests and false prophets to build up many churches, and to do all manner of iniquity. And they did smite upon the people of Jesus; but the people of Jesus did not smite again. And thus they did dwindle in unbelief and wickedness, from year to year, even until two hundred and thirty years had passed away.
7. Morm. 1: 14
   14 And there were no gifts from the Lord, and the Holy Ghost did not come upon any, because of their wickedness and unbelief.
8. Ether 4: 15
   15 Behold, when ye shall rend that veil of unbelief which doth cause you to remain in your awful state of wickedness, and hardness of heart, and blindness of mind, then shall the great and marvelous things which have been hid up from the foundation of the world from you—yea, when ye shall call upon the Father in my name, with a broken heart and a contrite spirit, then shall ye know that the Father hath remembered the covenant which he made unto your fathers, O house of Israel.