Is not this the fast that I have chosen?
Practical fasting
In reply to the question, how the acts here mentioned could be described as fasting, J. D. Michaelis says that they are all to be considered as involving acts of conscientious self-denial, which he illustrates by the case of an American slaveholder brought by stress of conscience to emancipate his slaves. (J. A. Alexander.)
Oppression
People may be oppressed in their reputation by unmerited reproaches. (R. Macculloch.)
A foretokening of Gospel morality
This passage is one of those in which the holiness peculiar to the Gospel seems to be foretokened in the morality of the prophetic canon. The twilight clouds were red with the coming Sun.
1. Isaiah and his brother-prophets were holier and heavenlier and richer in the works of love upon an anticipated Christ than we are in a Christ already our crucified Example. These men of God knew no divorce between belief and love, between living perpetually in the presence of a benevolent Lord and imitating His benevolence to their “fellow-creatures. As it is the spirit of truth that has solemnized the union of the principle of faith with the works of charity, so it is, and in all ages has been, the master policy of the spirit of evil to effect their separation.
2. The whole religious providence towards man in every age has been a system operating by the combined influence of faith and love--both directed towards His own perfect essence. In our existing condition, what is faith but love relying on support? What is love but faith forgetting the support in the Supporter? Every progressive step in attaining habits of compassion and kindness upon earth must necessarily be a step towards estimating and loving Him who is the essential Spirit of benevolence. The love of man is the type and shadow of the love of God. The people of God are here engaged with the rudiments and images of those affections which are to be the duty and happiness of their eternity. (W. Archer Butler.)