Isa 58:8 | JFB | STEP | 8. light-- emblem of prosperity ( ; ). health-- literally, a long bandage, applied by surgeons to heal a wound (compare ). Hence restoration from all past calamities. go before thee-- Thy conformity to the divine covenant acts as a leader, conducting thee to peace and prosperity. glory ... reward-- like the pillar of cloud and fire, the symbol of God's "glory," which went behind Israel, separating them from their Egyptian pursuers ( ; , ).

‏ Isaiah 58:8

8. light--emblem of prosperity (Is 58:10; Job 11:17).

health--literally, a long bandage, applied by surgeons to heal a wound (compare Is 1:6). Hence restoration from all past calamities.

go before thee--Thy conformity to the divine covenant acts as a leader, conducting thee to peace and prosperity.

glory ... reward--like the pillar of cloud and fire, the symbol of God's "glory," which went behind Israel, separating them from their Egyptian pursuers (Is 52:12; Ex 14:19, 20).