Who are the saints in the Bible—are they believers of every age?

Les explains that "saints" is a general term for believers of any age. He says believing Israelites were of the company of the saints; those who believed during Christ's earthly ministry were saints; those who believed during the Acts period are saints; those of us who believe in the Church period are saints; and those saved during the tribulation are going to be called saints. In the context of Matthew 27:52, the graves in the Jerusalem area were opened, and many bodies of the saints came out after His resurrection. Les notes these were evidently Jewish believers buried in Jerusalem, because there were not enough Gentiles in that Old Testament economy to count. He stresses it was important they came out after Christ's resurrection, because if they had come out before, it would throw a kilter in the whole plan of God that Christ was the firstfruits of resurrection.