Such are the following verses from D&C section 3:
1 The works, and the designs, and the purposes of God cannot be frustrated, neither can they come to naught.These verses give me great comfort. Through them we can know that God's works and purposes will prevail. Let earth and hell combine against the work of God and all they will do is break themselves upon it. As we do what is right, strive to bring forth the work of God and do our part to fulfill our responsibilities as the seed of Abraham, we can know that we are on the Lord's errand and we will succeed. He has promised and assured us that we can make it if we are faithful. The words to a couple of the verses from How Firm a Foundation come to mind:2 For God doth not walk in crooked paths, neither doth he turn to the right hand nor to the left, neither doth he vary from that which he hath said, therefore his paths are straight, and his course is one eternal round.
3. Fear not, I am with thee; oh, be not dismayed,
For I am thy God and will still give thee aid.
I’ll strengthen thee, help thee, and cause thee to stand,
Upheld by my righteous, upheld by my righteous,
Upheld by my righteous, omnipotent hand.
7. The soul that on Jesus hath leaned for repose
I will not, I cannot, desert to his foes;
That soul, though all hell should endeavor to shake,
I’ll never, no never, I’ll never, no never,
I’ll never, no never, no never forsake!
I cannot help but also think of Joseph Smith's words in D&C section 128:22 where he says:
22 Brethren, shall we not go on in so great a cause? Go forward and not backward. Courage, brethren; and on, on to the victory!