Summary: The unfolding of Revelation 12 and companion texts in the book of Daniel revealing the source of the 144 Thousand
The Remnant of Her Seed
In Revelation 12 (quickview)  “the woman” who represents the faithful nation of Israel is introduced with the main focus in this chapter upon Satan’s attempts to eliminate the Messiah and the Jews as a people. God, during this end of the age assault gives her supernatural protection, and His protection continues throughout the entire second half of Daniel’s 70th Week.
“And the dragon was wroth with the woman, and went to make war with the remnant [rest] of her seed, which keep the commandments of God, and the testimony of Jesus Christ.” (Revelation 12:17 (quickview) )
The word translated “remnant” means remainder or rest, and the phrase “of her seed” indicates the physical relationship this group has with the woman. They are Israelites and their spiritual qualifications, they “keep the commandments of God and have the testimony of Jesus Christ”, are indicated in the remainder of the verse.
While some interpret this group to be “the saints” of Revelation 14:12 (quickview) , there is no Biblical precedent for “the woman” (the faithful nation of Israel) or any other group to be identified as the spiritual head of the saints as was Abraham:
The word translated “seed” in Revelation 12:17 (quickview)  and Galatians 3:29 (quickview)  is the same Greek word “sperma” which is used over forty times in the New Testament. Every time it occurs it refers to physical seed, as in Revelation 12:17 (quickview) , except for Galatians 3:29 (quickview)  which is the only time it is used to show Abraham as the spiritual fountainhead or father of the faithful. He as the physical father of the Israelites was also the first to have his faith recorded indicating the doctrine of justification by faith:
Now, all before him were also justified by faith “by His [the Lord Jesus Christ’s] blood” (Romans 5:9 (quickview) ). But, it was Abraham, the father of the faithful, to whom it was first recorded in Scripture that “it was imputed to him for righteousness” (Romans 4:22 (quickview) ). Therefore he is the only one who can be defined as the spiritual fountainhead/father of the saints who are in Christ being justified by faith.
The purpose of this description in Revelation 12:17 (quickview) : “the remnant [rest] of her [physical] seed, who keep the commandments of God and the testimony of Jesus Christ” is to indicate exactly who Satan’s focus will be after “the woman” flees to the wilderness. Three groups of Israelites will remain in the land as described in the book of Daniel 11 (quickview) , 12.
The vast majority of faithful Israelites are protected in a place prepared by God for the last half of the 70th Week. But, this select group of Israelites, the 144 Thousand, remains to serve the Lord becoming the primary focus of Satan’s assault during the last 3-1/2 years of Daniel’s 70th Week.
Their vital Redemption Ministry is necessary in the plan of God as it will be key to the conversion of many Israelites who will receive their Messiah, the Lord Jesus Christ: