Isaiah 54

Isaiah saw the last days where -

"...more are the children of the desolate than the children of the married wife, saith the LORD." (Old Testament | Isaiah 54:1)

My feelings are the their are many of Israel in our day spread throughout the world that are the children of the desolate or in a sense "showing the effects of abandonment and neglect" (M-W Dictionary) or spiritual abandonment and neglect. It is these with the gentiles that could also be ocnsidered children of the desolate that -

"...shalt break forth on the right hand and on the left; and thy seed shall inherit the Gentiles, and make the desolate cities to be inhabited." (Old Testament | Isaiah 54:3)

I believe the desolate cities Isaiah saw are spiritually desolated cites and it is these cities that will then be spiritually inhabited with converts or the faithful. To these inhabitants, the Lord commanded -

"Enlarge the place of thy tent, and let them stretch forth the curtains of thine habitations: spare not, lengthen thy cords, and strengthen thy stakes..." (Old Testament | Isaiah 54:2)

Hoyt W. Brewster explained of the term "stakes" -

"The clarion call to "enlarge" and "strengthen" the stakes of Zion was given anciently to Isaiah (Isa. 54:2), repeated to the Nephites (3 Ne. 22:2), and reiterated in our day (D&C 109:59; 133:9). A stake is an ecclesiastical unit of The Church of Jesus Christ of Latter-day Saints and covers a specific geographical area. According to the Lord, stakes are "curtains or the strength of Zion" (D&C 101:21). They are places where the Saints of God may be instructed more perfectly in the doctrines of salvation.

A stake is usually composed of a minimum of several thousand people, who are divided into smaller units known as wards. The first use of the term in modern times was when Kirtland, Ohio, was consecrated on April 26, 1832 as a place for a stake of Zion (D&C 82:13).

Each stake is presided over by a president and two counselors, who are called to their positions by revelation under the direction of a General Authority of the Church. Elder Harold B. Lee noted that a stake is "the most perfect administrative organization that the Lord has yet given us" (CN, Aug. 26, 1961, C-10). (Doctrine and Covenants Encyclopedia)