The good tidings are the message of the gospel. Abinadi explains the important components in chapter 15. He instructs us that the Lord had to redeem his people or else all mankind must have perished; he explains that the Savior has broken the bands of death so that all can be resurrected (Mosiah 15:19-20). In essence, he describes how the atonement saves us from spiritual death and physical death. This is the good news of the gospel.
“How Beautiful Upon the Mountains are the Feet of Him That Bringeth Good Tidings”
Abinadi explains that those who bring good tidings and publish peace are the prophets, I mean all the holy prophets ever since the world began (Mosiah 15:13). He acknowledges that the greatest prophet to which this refers is the Lord himself, the founder of peace, yea, even the Lord, who has redeemed his people; yea, him who has granted salvation unto his people (Mosiah 15:18).
This scripture is not limited to the prophets and the Lord. All who teach of the salvation wrought through Christ’s infinite atonement are doing the same thing—bringing good tidings and publishing salvation. Every missionary, teacher, and leader who has taught these saving principles has beautiful feet. The Lord spoke to the early Elders of the Church as follows, ye are blessed, for the testimony which ye have borne is recorded in heaven for the angels to look upon; and they rejoice over you, and your sins are forgiven you (DC 62:3).
Wilford Woodruff
“What position can any man occupy on the face of the earth, that is more noble, God-like, high and glorious than to be a messenger of salvation unto the human family?” (Journal of Discourses, vol. 13, p. 319)
Carlos E. Asay
"I like what Paul had to say about preachers or missionaries. He instructed the Romans: ’For whosoever shall call upon the name of the Lord shall be saved. How then shall they call on him in whom they have not believed? and how shall they believe in him of whom they have not heard? and how shall they hear without a preacher? And how shall they preach, except they be sent? as it is written, How beautiful are the feet of them that preach the gospel of peace, and bring glad tidings of good things!’ (Romans 10:13–15.)
The feet, the voices, the faces, and the whole being of those preachers who share saving truths will always be precious and beautiful to new converts, especially to those who have suffered in their sins. In the eyes of those who have learned of Christ and of his power to save, there are few if any blemishes in the missionaries who walked long distances to bring the gospel message." (The Seven M’s of Missionary Service, p. 136)
Franklin D. Richards
“’How beautiful upon the mountains are the feet of Him that bringeth good tidings, that publisheth peace; that bringeth good tidings of good, that publisheth salvation; that saith unto Zion, Thy God reigneth.’ It is that excellence of the knowledge of God that makes men and women beautiful, and makes their acts delightful when they are performed in righteousness in the name of the Lord Jesus Christ. I rejoice when I look around and contemplate this precious privilege…Here let me say, that every officer in the Church…and every sister that is the wife of such an husband should feel…that it is her privilege and duty to administer blessings, comfort and happiness to her husband, to her children, to her family and household. Every one in all the Church should be filled with a spirit of blessing. The authority of the Priesthood should cause a gushing forth from the fountain of the heart, a bubbling forth of streams of blessing, of consolation, of comfort and of rejoicing, each should try to help and benefit the other in every possible way.” (Journal of Discourses, vol. 26, p. 100)