D&C 123

 As I continued to read the letter by the Prophet Joseph Smith, that contains the D&C 121, 122, and 123, written in the Liberty Jail, two things caught my mind.  As we were promised that in this last dispensation - 

"...he shall send Jesus Christ, which before was preached unto you:

21 Whom the heaven must receive until the times of restitution of all things, which God hath spoken by the mouth of all his holy prophets since the world began."  (Acts 3:20–21)

Even with the restitution of all things, including plural marriage and United Order, the Prophet commented - 

“We have reason to believe that many things were introduced among the Saints before God had signified the times; and notwithstanding the principles and plans may have been good, yet aspiring men, or in other words, men who had not the substance of godliness about them, perhaps undertook to handle edged tools. Children, you know, are fond of tools, while they are not yet able to use them."  (History of the Church, Vol. 3, pages 289-303)

And the second thought was the Constitution of the United States - 

"Hence we say, that the Constitution of the United States is a glorious standard; it is founded in the wisdom of God. It is a heavenly banner; it is to all those who are privileged with the sweets of its liberty, like the cooling shades and refreshing waters of a great rock in a thirsty and weary land. It is like a great tree under whose branches men from every clime can be shielded from the burning rays of the sun."  (History of the Church, Vol. 3, pages 289-303)

Therefore the Prophet testifies - 

“We say that God is true; that the Constitution of the United States is true; that the Bible is true; that the Book of Mormon is true; that the Book of Covenants is true; that Christ is true; that the ministering angels sent forth from God are true, and that we know that we have an house not made with hands eternal in the heavens, whose builder and maker is God..." (History of the Church, Vol. 3, pages 289-303)