Jamieson, Fausset & Brown, on John 11:11

Our friend Lazarus sleepeth; but I go that I may wake him out of sleep--Illustrious title! "Our friend Lazarus." To Abraham only is it accorded in the Old Testament, and not till after his death, (Ch2 20:7; Isa 41:8), to which our attention is called in the New Testament (Jam 2:23). When Jesus came in the flesh, His forerunner applied this name, in a certain sense, to himself (Joh 3:29); and into the same fellowship the Lord's chosen disciples are declared to have come (Joh 15:13-15). "The phrase here employed, "our friend Lazarus," means more than "he whom Thou lovest" in Joh 11:3, for it implies that Christ's affection was reciprocated by Lazarus" [LAMPE]. Our Lord had been told only that Lazarus was "sick." But the change which his two days' delay had produced is here tenderly alluded to. Doubtless, His spirit was all the while with His dying, and now dead "friend." The symbol of "sleep" for death is common to all languages, and familiar to us in the Old Testament. In the New Testament, however, a higher meaning is put into it, in relation to believers in Jesus (see on Th1 4:14), a sense hinted at, and clearly, in Psa 17:15 [LUTHARDT]; and the "awaking out of sleep" acquires a corresponding sense far transcending bare resuscitation.