If we are to be the light of the world, we must maintain that (1) Jesus is the righteous law-keeper and (2) we walk in accord with His righteousness. a. The role of salt and light (vs. 13-14) b. The purpose of the light (vs. 15-16) c. The provision of Christ's righteousness (vs. 17-18) d. The provision of Christian righteousness (vs. 19-20)