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It's amazing what meditating on scripture can do for you. I have some favorites, particularly in 2 Nephi.

20 Wherefore, ye must press forward with a steadfastness in Christ, having a perfect brightness of hope, and a love of God and of all men. Wherefore, if ye shall press forward, feasting upon the word of Christ, and endure to the end, behold, thus saith the Father: Ye shall have eternal life.
- 2 Nephi 31:20 (BOM)

3 But I, Nephi, have written what I have written, and I esteem it as of great worth, and especially unto my people. For I pray continually for them by day, and mine eyes water my pillow by night, because of them; and I cry unto my God in faith, and I know that he will hear my cry.
4 And I know that the Lord God will consecrate my prayers for the gain of my people. And the words which I have written in weakness will be made strong unto them; for it persuadeth them to do good; it maketh known unto them of their fathers; and it speaketh of Jesus, and persuadeth them to believe in him, and to endure to the end, which is life eternal.
- 2 Nephi 33:3-4 (BOM)

A verse of encouragement from Doctrine and Covenants also aids greatly.

24 Search diligently, pray always, and be believing, and all things shall work together for your good.
- D & C 90:24

And that verse naturally evokes this well-known one from Romans:

28 And we know that all things work together for good to them that love God, to them who are the called according to his purpose.
- Romans 8:28 (NT)
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