Commentaries:
Jesus shows us that meekness is not a mere contemplative virtue; it is maintaining peace and patience in the midst of pelting provocations. In II Corinthians Paul realizes that the meek and gentle approach can easily appear as weakness to those unfamiliar with Jesus' example, so he calls it "the meekness . . . of Christ." True meekness is always measured by Christ's meekness. His humility, patience, and total submission of His own will to the will of the Father exemplifies meekness.
Martin G. Collins
Meekness
When anah ("afflicted") is used in what is called the niphal stem, it means the pain, trouble, or discomfort is reflexive and thus self-inflicted. In English grammar, "reflexive" means the action of the verb is directed back at the subject. One of the things Isaiah 53:4 is saying, then, is that Christ voluntarily submitted Himself to this affliction.
John W. Ritenbaugh
Pride, Humility, and the Day of Atonement
Other Forerunner Commentary entries containing Isaiah 53:4:
Galatians 4:4