Omni 1:26

26 And now, my beloved brethren, I would that ye should come unto Christ, who is the Holy One of Israel, and partake of his salvation, and the power of his redemption. Yea, come unto him, and offer your whole souls as an offering unto him, and continue in fasting and praying, and endure to the end; and as the Lord liveth ye will be saved.

Proverbs 16:3

3. Commit thy works unto the Lord, and thy thoughts shall be established.

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.

Matthew 6:24

24. No man can serve two masters: for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon.

Alma 37:36-37

36. Yea, and cry unto God for all thy support; yea, let all thy doings be unto the Lord, and withersoever thou goest let it be in the Lord; yea, let all thy thoughts be directed unto the Lord; yea, let the affections of thy heart be placed upon the Lord forever.
37. Counsel with the Lord in all thy doings, and he will direct thee for good; yea, when thou liest down at night lie down unto the Lord, that he may watch over you in your sleep; and when thou risest in the morning let thy heart be full of thanks unto God; and if ye do these things, ye shall be lifted up at the last day.