LWCF

"But there shall by no means enter it anything that defiles or causes an abomination or lie, but only those who are written in the Lamb's book of life." -Revelation 21:27

For too long mankind has been subject to defilement, pollution, and lies. These things constantly war against our souls. We are to be watchful, to walk circumspectly, to discern the times. In God's kingdom we will cast aside our concern for these evils in exchange for everlasting holiness. We will be unburdened. Furthermore, we will no longer be troubled or provoked by chaotic, fractured, guesses as to what is holy and pleasing to our Father. Only holy things will be there! And Christ's saints, His holy ones, will be in the midst! 

Its gates shall not be shut at all by day (there shall be no night there). -Revelation 21:25

In the new creation there will be no need to close the gates. No need to barricade ourselves against evil or violence as we do now. The glory of our Lord will illuminate our space forevermore and there will be no darkness to cloak wickedness. Consider, in our current state we lay our heads down to sleep only after ensuring our houses are locked up tight, for fear of intruders. It will not be so in God's kingdom. His eternal light expels the darkness. He is ever watchful over us and will keep us in perfect peace.