Will there be death and sickness in the Millennial Kingdom?
According to the context, there will be no death, no sickness, no curse, and no Satan in the Millennial Kingdom. Christ will rule perfectly, and Isaiah 11:9 states there will be no hurting or destroying, and no death to speak of, because the earth will be full of the knowledge of the Lord.
Les teaches that after the tribulation, a small percentage of survivors—the believing sheep of Matthew 25—will enter the Kingdom and become the parents of the children seen in Isaiah 11. He explains that in that Kingdom there will be no death, no sickness, no curse, no Satan, and Christ will be in total control, a perfectly perfect rule and government, resulting in a tremendous population explosion. Then, referring to Isaiah 11:9, he notes that a mountain in the Old Testament especially represents a Kingdom, so there will be no hurting or destroying, and no death to speak of in His Kingdom. The reason given is that the earth shall be full of the knowledge of the Lord as the water covers the sea. He then moves on to Amos chapter 9 and other Old Testament highlights about this earthly Kingdom.