Simple principles of the gospel
Instances where the gospel is really simplified: pass righteous judgement, pray, forgive others, etc.
2 Chronicles 7:14 - humble yourselves, seek the Lord's face, turn from your wicked ways, the Lord will forgive sin and heal the land
Job 31:32 - "The stranger did not lodge in the street: but I opened my doors to the traveller."
Alma 34:28 - "if ye turn away the needy, and the naked, and visit not the sick and afflicted, and impart of your substance, if ye have, to those who stand in need–I say unto you, if ye do not any of these things, behold, your prayer is vain, and availeth you nothing, and ye are as hypocrites who do deny the faith."