Labor in the spirit

1. Alma 8: 10
     10 Nevertheless Alma labored much in the spirit, wrestling with God in mighty prayer, that he would pour out his Spirit upon the people who were in the city; that he would also grant that he might baptize them unto repentance.
2. Alma 17: 5
     5 Now these are the circumstances which attended them in their journeyings, for they had many afflictions; they did suffer much, both in body and in mind, such as hunger, thirst and fatigue, and also much labor in the spirit.
3. D&C 72: 14
     14 And the labors of the faithful who labor in spiritual things, in administering the gospel and the things of the kingdom unto the church, and unto the world, shall answer the debt unto the bishop in Zion;