The 144,000 are called “firstfruits” in Revelation 14: “These are the ones who were not defiled with women, for they are virgins. These are the ones who follow the Lamb wherever He goes. These were redeemed from among men, being firstfruits to God and to the Lamb. And in their mouth was found no deceit, for they are without fault before the throne of God” (verses 4,5).

The various descriptions depict the righteousness of these saints. They stand upon and live by the truth. They recognize and reject the defilements of false religion. They have placed their faith in Christ, and follow Him in every aspect of their lives.

The 144,00 are called “firstfruits” because they are a part of the spiritual harvest of firstfruits, or first to enter the Kingdom of God. From the description in Chapter 7, it is clear that the 144,000 are only a part of the firstfruits harvest.

John wrote, “After these things [that is, after seeing the 144,000 from “all the tribes of the children of Israel,” verse 4] I looked, and behold, a great multitude which no one could number; of all nations, tribes, peoples, and tongues, standing before the throne and before the Lamb, clothed with white robes, with palm branches in their hands, and crying out with a loud voice. saying, ‘Salvation belongs to our God who sits on the throne, and to the Lamb’” (verses 9,10).

Like the 144,000 Israelites, this great multitude from all nations is “before the throne of God” (verse 15). These “are the ones who come out of the great tribulation, and washed their robes and made them white in the blood of the Lamb” (verse 14).

Both groups, the 144,000 and the great multitude, make their appearance after the Great Tribulation and just before the Day of the Lord (compare verse 15 with verses 1–3). The entire company is converted during, and as a result of, the Great Tribulation. So, no, the 144,000 are not the only ones who will have or receive the Holy Spirit during the last days of this age.