from prison and from judgment, &c. = by constraint and by sentence He was taken away.
who shall declare His generation? = as to the men of His age [i.e. His contemporaries!, who ponders, or considers as to this seed, seeing He is to be "cut off"? Compare Isa_53:10.
cutoff. Compare Dan_9:26. Thus the climax of this prophecy is reached: (1) a hint (Isa_42:4); (2) open lament (Isa_49:4); (3) personal suffering (Isa_50:6); now (4) a violent death (Isa_53:8).