Bede

Now the overseers who were in charge of each operation are the writers of sacred Scripture by whose teaching authority we are instructed in all things as to how best to teach the ignorant and correct the contemptuous, to bear each other’s burdens so that we may fulfill the law of Christ. But the more each one labors in giving his neighbors support in their needs or in correcting their mistakes, the more surely may he expect in the life to come the rewards whether of peace of soul after death or of blessed immortality of body. Consequently, the aforesaid overseers are rightly recorded as numbering 70, and 80,000: 70, because of the sabbath rest of souls for the seventh day is consecrated to the sabbath, that is, rest; 80, because of the hope of resurrection on the eighth day, that is, after the sabbath, has already taken place in the Lord, and, it is hoped, will take place in us also on the eighth day and in the eighth age to come. The overseers, on the other hand, were 3,300, doubtless because of faith in the holy Trinity that the holy Scriptures proclaim to us. But the fact that in the book of Paralipomenon the number 3, is written instead of 3, has to do with the very same perfection of people of sublime virtue. For because the Lord completed the adornment of the world in the number six, the perfect works of good people are rightly apt to be symbolized by the same number, and because holy Scripture teaches that we must have the works of piety as well as true faith, the overseers of the temple works are rightly said to be 3,600. Nor should we pass over the fact that these 70, and 80, hod carriers and stonemasons with their overseers were not from Israel but from among the proselytes, that is, strangers who sojourned among them. For it is written in the book of Paralipomenon, “And Solomon took a census of all the proselytes resident in the land of Israel, on the model of the census that David his father had taken; and it was found that they numbered 153,600. And he put 70, of them carrying burdens on their shoulders,” and so forth.