I have always derived much comfort from the statement of Revelation 7:9 that the company of the redeemed in heaven will be “a great multitude which no man could number.” I do not profess to know how this can be, since Christians have always seemed to be a rather small minority. But Scripture states it for our comfort. Although no biblical Christian can be a universalist (believing that all mankind will ultimately be saved), since Scripture teaches the awful reality and eternity of hell, yet a biblical Christian can-even must-assert that the redeemed will somehow be an international throng so immense as to be countless. For God’s promise is going to be fulfilled, and Abraham’s seed is going to be as innumerable as the dust of the earth, the stars of the sky and the sand on the seashore.
The Living God is a Missionary God
(Perspectives reader p.9)