Luke 17

I find it interesting that at one point in time, Luke records -

"...the apostles said unto the Lord, Increase our faith." (New Testament | Luke 17:5)

My thoughts are that they probably were saying "please help increase our faith" or "Lord, how do we increase our faith?". The Lord then told them a simple parable -

"...which of you, having a servant plowing or feeding cattle, will say unto him by and by, when he is come from the field, Go and sit down to meat?
8 And will not rather say unto him, Make ready wherewith I may sup, and gird thyself, and serve me, till I have eaten and drunken; and afterward thou shalt eat and drink?
9 Doth he thank that servant because he did the things that were commanded him? I trow not." (New Testament | Luke 17:7 - 9)

In my mind, the illustration suggests that the servant should fufill all his duties and responsibilities before the blessings or faith flows. The Savior continued -

"So likewise ye, when ye shall have done all those things which are commanded you, say, We are unprofitable servants: we have done that which was our duty to do." (New Testament | Luke 17:10)

King Benjamin taught much the same principle -

"I say unto you that if ye should serve him who has created you from the beginning, and is preserving you from day to day, by lending you breath, that ye may live and move and do according to your own will, and even supporting you from one moment to another—I say, if ye should serve him with all your whole souls yet ye would be unprofitable servants.
22 And behold, all that he requires of you is to keep his commandments; and he has promised you that if ye would keep his commandments ye should prosper in the land; and he never doth vary from that which he hath said; therefore, if ye do keep his commandments he doth bless you and prosper you." (Book of Mormon | Mosiah 2:21 - 22)

Faith then increases as do our duty and keep the commandments. The Prophet Joseph Smith taught -

"When faith comes it brings its train of attendants with it—apostles, prophets, evangelists, pastors, teachers, gifts, wisdom, knowledge, miracles, healings, tongues, interpretation of tongues, etc. All these appear when faith appears on the earth, and disappear when it disappears from the earth; for these are the effects of faith, and always have, and always will, attend it. For where faith is, there will the knowledge of God be also, with all things which pertain thereto—revelations, visions, and dreams, as well as every necessary thing, in order that the possessors of faith may be perfected, and obtain salvation." (Lectures on Faith, pp. 70-71.)