This part of Isaiah is a prayer for mercy. Supplication for God to look down from heaven and see the abject condition of the once-favored nation. This prayer asks where God’s zeal, strength, tenderness, and compassion are, and if they are restrained or withheld from the people. The verses are interpreted as a prophecy of the Babylonish captivity and the after-deliverance of the Jews. The millennial reign of Jesus Christ will be a time for Israel to bear witness to their national humbling and repentance (the Great Tribulation)
It reads in Isaiah 63:15-19 Easy to Read Version
Please, look down from the heavens. See what is happening now. Look down at us from your great and holy home in heaven. Where is your strong love for us? Where is your compassion? Why are you hiding your kind love from me? Look, you are our father! Abraham does not know us. Israel does not recognize us. Lord, you are our father! You are the one who has always saved us! Lord, why are you pushing us away from you? Why are you making it hard for us to follow you? Come back to us! We are your servants. Come to us and help us! Our tribes belong to you. Your holy people had their land only a short time. Then our enemies trampled down your holy Temple. Some people don’t follow you. They don’t wear your name. And we have been like them for a very long time.