lifted up mine eyes - from the ground on which they had been fixed in his mourning.
certain man - literally, “one man.” An angel of the highest order; for in Dan 8:16 he commands Gabriel to make Daniel to understand the vision, and in Dan 12:6 one of the two angels inquires of him how long it would be till the end predicted.
linen - the raiment of priests, being the symbol of sanctity, as more pure than wool (Exo 28:42); also of prophets (Jer 13:1); and of angels (Rev 15:6).
girded with ... gold - that is, with a girdle interwoven with gold (Rev 1:13).