D&C 104

The Lord said to all -

"And in nothing doth man offend God, or against none is his wrath kindled, save those who confess not his hand in all things, and obey not his commandments." (Doctrine and Covenants | Section 59:21)

When it comes to wealth and riches, it is apparent that the Lord has his hand in all things. Or as Job summarized -

"..the LORD gave, and the LORD hath taken away; blessed be the name of the LORD." (Old Testament | Job 1:21)

In the Lord's plan for each of us, to some He gives wealth and to some He chooses not to. But nonetheless, in a eternal perspective, each has its purpose and blessing. In modern day, the Lord said to several of His saints -

"...inasmuch as they are faithful, behold I will bless, and multiply blessings upon them." (Doctrine and Covenants | Section 104:31)

In some cases this meant wealth. Elder Orson Hyde provided a very interesting perspective -

"Now some persons may begin to harrow up their feelings, and to cherish in their hearts murmurings because God in his providence and in his mercy and kindness, may begin to pour upon this man and upon that man blessings by which he accumulates wealth, and by which he is made comfortable and happy; they are envious and jealous. . . . If we envy those that are really beginning to participate a little in the inheritance of all things, is not this a strong presumptive evidence within ourselves that we are not heirs to all things, neither are we willing that our brethren should be.

When a man of God is blessed from on high and shall begin to gather around him means sufficient to place him beyond the reach of immediate want, God hath done it—God hath blessed that person—and every Saint will feel thankful to see his brethren so prospered and blessed of the Lord, feeling encouraged that his time will come sometime if he continues faithful. . . .

The Lord sees us all and knows what our feelings are—the very thoughts and intents of our hearts are laid bare before Him [Sec. 38:2], and when He sees that we are prepared to endure great earthly blessings, do you think that any trifling circumstance will cause him to delay and wait and put us off and make us wait for his blessings." (Orson Hyde, JD 10:263.)

A very interesting thought that we should rejoice when others are successful, not envy or be jealous.