Revelation 20:4
"And they lived and reigned with Christ a thousand years."
That there is to be a period of time, 1000 years, when satan will be bound and Jesus will reign on the earth, is plain in the New Testament. It is a time mentioned 6 times in Revelation 20:1-7, and is called the Millennium.
It's the time that Jesus taught His disciples to pray for in the prayer - "Thy Kingdom Come."
