1 Nephi 8:12

12 And as I partook of the fruit thereof it filled my soul with exceedingly great joy; wherefore, I began to be desirous that my family should partake of it also; for I knew that it was desirable above all other fruit.

Mosiah 28:2-5

2 Than perhaps they might bring them to a knowledge of the Lord their God, and convince them of the iniquity of their fathers; and that perhaps they might cure them of their hatred towards the Nephites, that they might also be brought to rejoice in the Lord their God, that they might become friendly to one another, and that there should be no more contentions in all the land which the Lord their God had given them.
3 Now they were desirous that salvation should be declared to every creature, for they could not bear that any human soul should perish; yea, even the very thoughts that any soul should endure endless torment did cause them to quake and tremble.
4 And thus did the Spirit of the Lord work upon them, for they were the very vilest of sinners. And the Lord saw fit in his infinite mercy to spare them; nevertheless they suffered much anguish of soul because of their iniquities, suffering much and fearing that they should be cast off forever.
5 And it came to pass that they did plead with their father many days that they might go up to the land of Nephi.

1 Nephi 13:37

37. And blessed are they who shall seek to bring forth my Zion at that day, for they shall have the gift and power of the Holy Ghost; and if they endure unto the end, they shall be lifted up at the last day, and shall be saved in the everlasting kingdom of the Lamb; and whoso shall publish peace, yea, tidings of great joy, how beautiful upon the mountains shall they be.

1 Nephi 2:(12) 15-17

12. And thus Laman and Lemuel, being the eldest, did murmur against their father. And they did murmur because they knew not the dealings of that God who had created them.

15. And my father dwelt in a tent.
16. And it came to pass that I, Nephi, being exceedingly young, neverthless being large in stature, and also having great desires to know of the mysteries of God, wherefore, I did cry unto the Lord; and behold he did visit me, and did soften my heart that I did believe all the words which had been spoken by my father; wherefore, I did not rebel against him like unto my brothers.
17. And I spake unto Sam, making known unto him the things which the Lord had manifested unto me by his Holy Spirit. And it came to pass that he believed in my words.

Ezra Taft Benson (Preach My Gospel p.121 [1988])

I have often said one of the greatest secrets of missionary work is work! If a missionary works, he will get the spirit; if he gets the spirit, he will teach by the spirit; and if he teaches by the spirit, he will touch the hearts of the people and he will be happy. There will be no homesickness, no worrying about families, for all time talents and interests are centered on the work of the ministry. Work, work, work--there is no satisfactory substitute, especially in missionary work.

Jeremiah 20:9

9. Then I said, I will not make mention of him, nor speak in his name anymore. But his word was in mine heart as a burning fire shut up in my bones, and I was weary with forebearing, and I could not stay.

3 Nephi 19:2-3

2. And it was noised abroad among the people immediately, before it was yet dark, that the multitude had seen Jesus, and that he had ministered unto them, and that he would also show himself on the morrow unto the multitude.
3. Yea, and even all the night it was noised abroad concerning Jesus; and insomuch did they send forth unto the people that there were many, yea, an exceedingly great number, did labor exceedingly all that night, that they might be on the morrow in the place where Jesus should show himself unto the multitude.

D&C 18:10-16

10. Remember the worth of souls is great in the sight of God;
11. For, behold, the Lord your Redeemer suffered death in the flesh; wherefore he suffered the pain of all men, that all men might repent and come unto him.
12. And he hath risen again from the dead, that he might bring all men unto him, on conditions of repentance.
13. And how great is his joy in the soul that repenteth!
14. Wherefore, you are called to cry repentance unto this people.
15. And if it so be that you should labor all your days in crying repentance unto this people, and bring, save it be one soul unto me, how great shall be your joy with him in the kingdom of my Father!
16. And now, if your joy will be great with one soul that you have brought unto me in the kingdom of my Father, how great will be your joy if you should bring many souls unto me!

Ammon Peterson (October 21, 2007 Sacrament)

I know that if we follow it (the gospel) we'll have happy lives, and if we share it we'll have happier lives.

2 Nephi 2:6-8

6. Wherefore, redemption cometh in and through the holy Messiah, for he is full of grace and truth.
7. Behold, he offereth himself a sacrifice for sin, to answer the ends of the law, unto all those who have a broken heart and a contrite spirit, and unto none else can the ends of the law be answered.
8. Wherefore, how great the importance to make these things known unto the inhabitants of the earth; that they may know that there is no flesh that can dwell in the presence of God, save it be through the merits, and mercy, and grace of the Holy Messiah, who layeth down his life according to the flesh, and taketh it again by the power of the spirit; that he may bring to pass the resurrection of the dead, being the first that should rise.

D&C 4:1-7

1. Now behold, a marvelous work is about to come forth among the children of men.
2. Therefore, oh ye that embark in the service of God see that ye serve him with all your might mind and strength, that ye may stand blameless before God at the last day.
3. Therefore, if ye have desires to serve God ye are called to the work.
4. For behold, the field is white all ready to harvest, and lo, he that thrusteth in his sickle with his might, the same layeth up in store that he perisheth not, but bringeth salvation to his soul.
5. And faith, hope, charity, and love, with an eye single to the glory of God, qualify him for the work.
6. Remember faith, virtue, knowledge, temperance, patience, brotherly kindness, godliness, charity, humility, diligence.
7. Ask and ye shall receive, knock and it shall be opened unto you, amen.