Revelation 14:1

1 THEN I looked, and behold, the Lamb stood on Mount Zion, and with Him 144,000 [men] who had His name and His Father's name inscribed on their foreheads. 

We are shown here by Jesus that these 144,000 men have our Father’s Name inscribed on their foreheads. This shows us that they are totally filled with the Holy Spirit and that they are one with our Father through Jesus Christ. Mount Zion is a representation for the Jews. So John is seeing that the message of salvation has finally come to the Jews, our Father finally removes the blinders from the children of Israel. John is shown here that there is going to be wide spread salvation for Jews during the Great Tribulation.

He has blinded their eyes and hardened and benumbed their [callous, degenerated] hearts [He has made their minds dull], to keep them from seeing with their eyes and understanding with their hearts and minds and repenting and turning to Me to heal them. John 12:40

These may be the same 144,000 men that we were shown earlier in Revelation 7, or they may be a different 144,000. Either way these individuals are going to be used by our Father in a very powerful way during the last 3 1/2 years of this earth age. 

2 And I heard a voice from heaven like the sound of great waters and like the rumbling of mighty thunder; the voice I heard [seemed like the music] of harpists accompanying themselves on their harps. 

3 And they sang a new song before the throne [of God] and before the four living creatures and before the elders [of the heavenly Sanhedrin]. No one could learn [to sing] that song except the 144,000 who had been ransomed (purchased, redeemed) from the earth. 

These 144,000 men are special ministers for Jesus to the Jews. Their message is loud and clear, just like thunder and when John heard the message that our Father was having them preach, it was music in his ears. Think of the joy that John must have felt as he finally sees the Truth being poured out and accepted by his countrymen? These 144,000 alone have been anointed by our Father for this specific ministry. They were redeemed from the earth, yet they stand before the Throne, not in the Throne, so they are still on the earth serving the Kingdom. Since they are the only ones chosen for this special ministry they alone sing the song. And the message that they have been chosen to preach is great, it is powerful, loud, and it is music to the ears of those who hear it. 

I hope that you are seeing through these postings of Revelation that there is a ton of good things shown to us that will happen during the end times. There will be wrath, absolutely, but there is also miracles, salvation, healing’s, and most of all Grace! Our Father never abandons Grace!