תהילים מג:ג פירוש: רש״י

Send Your light and Your truth The King Messiah, who is compared to light, as it is stated (below 132:17): “I have set up a lamp for my anointed,” and Elijah the prophet, who is true, a faithful prophet.

that they may lead me Heb. ינחוני, menoront moi in old French, they shall lead me.