'Unreal' in the Bible

When the Lord brought back the captives to Zion (Jerusalem),We were like those who dream [it seemed so unreal].

We also are but men, with natures kindred to your own; and we bring you the Good News that you are to turn from these unreal things, to worship the ever-living God, the Creator of earth and sky and sea and of everything that is in them.

For they had bartered the reality of God for what is unreal, and had offered divine honours and religious service to created things, rather than to the Creator--He who is for ever blessed. Amen.

through which also you are obtaining salvation, if you bear in mind the words in which I proclaimed it--unless indeed your faith has been unreal from the very first.