Jeremiah 23:7-8

In consequence of this great salvation, when the Lord Jesus is come, and hath fully finished it, the former deliverance from Egypt, which was but a type of it, shall then be done away, as the shadow is lost in the substance. Both the deliverance of the Church from Egypt, and the deliverance from Babylon were types of Jesus's deliverance from worse than Egyptian and Babylonian bondage. They were temporary, but this an eternal freedom. In allusion to this the Church is represented as singing, Revelation 18:2, etc.