There will some people left. Despite all tbat Edom has tried, they will not be able to wipe out Israel.
“But on Mount Zion there will be those who escape, And it will be holy. And the house of Jacob will possess their possessions.
Obadiah 1:17 NASB
The people of Jacob will endure because God is protecting them. God sees them and because of the relationship they have with God, He will preserve and protect them and ultimately, give them victory.
God sees us and because of all the relationship we have with Him and because of His holiness, He will protect us and give us the victory. It is a praise and glory to Him. Will we have that relationship with God?