From the Watchtower 66 3/15
"And with him a hundred and forty-four thousand.”
This is the number of the associates with Christ in his heavenly rulership, once stated as a number as unknown to man as the stars of heaven and the sands of the seashore, but here revealed. That it is a literal number is shown in Revelation chapter 7, where, after giving the definite number of 144,000, at verse 9 it speaks of another group, a “great crowd” whom no man was able to number. The number 144,000 could not be symbolic, for, if so, it would mean nothing. It might as well have no number at all, for there would be no contrast between it and the later-mentioned “great crowd,” which is numberless"