Isaiah 54:4

Fear not,.... The fulfilment of these things; however unlikely and unpromising they might seem, yet God was able to perform them; and therefore way should not be given to a fearful, distrustful, and unbelieving heart:

for thou shall not be ashamed; as men are, when disappointed of what they have been hoping for and expecting; but so it should not be with the church, she should not be ashamed of her hope, faith, and confidence; for there would be a performance of all that the Lord had spoken: nor should she be ashamed of her barrenness, which should cease; and of the fewness of her children or converts, which would be many; and of the straitness of the place of her tent or habitation, which would now be enlarged:

neither be thou confounded, for thou shalt not be put to shame; other words made use of to express the same thing, and for the further confirmation of it, that she needed not, and that she should not be put to the blush, or to shame and confusion, on the above accounts:

for thou shalt forget the shame of thy youth; by which may be meant either the small number of converts at the first preaching of the Gospel; or more especially that there were so few of the wise and learned, the rich and noble, that embraced it, with which the first Christians were greatly upbraided; or those persecutions which attended them the three first centuries, which, being now at an end, shall be forgotten:

and shalt not remember the reproach of thy widowhood any more; which signifies much the same as before, the seeming desolate estate of the church upon the death of Christ; when she seemed to be deprived of her husband, and forsaken by him, and left as a widow, and without children, barren and unfruitful; which was reckoned reproachful with the Jews, Luke 1:25.