In these verses, the Lord teaches us several things we can do (e.g., think virtuous thoughts) so that we can have the Spirit with us and stand before God with confidence. Becoming the master of our thoughts is possibly one of the most difficult struggles and heroic quests of a lifetime. What has helped you to have virtuous thoughts? What has not helped?
45 Let thy bowels also be full of charity towards all men, and to the household of faith, and let virtue garnish thy thoughts unceasingly; then shall thy confidence wax strong in the presence of God; and the doctrine of the priesthood shall distil upon thy soul as the dews from heaven.
46 The Holy Ghost shall be thy constant companion, and thy scepter an unchanging scepter of righteousness and truth; and thy dominion shall be an everlasting dominion, and without compulsory means it shall flow unto thee forever and ever.
During a particularly difficult time when Joseph Smith and his fellow prisoners in Liberty Jail did not have freedom in anything except for their thoughts, the Lord provided helpful counsel and a promise to them that are extended to all of us. [see D&C 121:45-6].
The word lust refers to an intense longing and improper desire for something. It encompasses any dark thoughts or evil desires that cause an individual to focus on selfish practices or worldly possessions rather than doing good, being kind, keeping the commandments of God, and so forth… I testify that as we rely upon the rock of salvation, the Savior of our souls, and follow Moroni’s counsel, our ability to control our thoughts will increase significantly. I can assure you that our spiritual maturity will grow at an increasing pace, changing our heart, making us more like Jesus Christ. Additionally, the influence of the Holy Ghost will be more intense and continuous in our life. Then the enemy’s temptations, little by little, will lose their power over us, resulting in a happier and more pure and consecrated life.
Elder Ulisses Soares