John Gill Commentary Isaiah 9:17

"Therefore the Lord will not rejoice over their young men, neither will he have compassion on their fatherless and widows; for every one is profane and an evil-doer, and every mouth speaketh folly. For all this his anger is not turned away, but his hand is stretched out still." — Isaiah 9:17 (ASV)

Therefore the Lord shall have no joy in their young men, &c.] Take no delight and pleasure in them; but, on the contrary, detest and abhor them, and so destroy them, being depraved and corrupted by the bad instructions and examples of their parents:

neither shall have mercy on their fatherless and widows; who are objects of pity and compassion; yet these being wicked, as well as the fathers of the one, and the husbands of the other, shall be no more spared than they have been; so that this expresses both the general corruption and destruction of this people:

for everyone [is] a hypocrite and an evildoer; a hypocrite, as Aben Ezra on the place observes, is one that is outwardly good, and inwardly wicked; which was the general character of the people of Israel in Isaiah's time, as it was of the Jews in the times of Christ, see (Matthew 23:25–28) they pretended to do good, but were doers of evil, workers of iniquity, continually committing sin; and yet would be thought to be very upright and sincere, both in their religion towards God, and in their dealings with men; but deceitful in both:

and every mouth speaketh folly; or falsehood; a lie, as the Targum, as all lies are foolish; as also all vain words, all impious ones; or the savour of irreligion or superstition, and indeed every idle word, and all unsavoury and corrupt speech, and there is particularly foolish talking, which is not convenient, (Ephesians 5:4) :

for all this his anger is not turned away, but his hand [is] stretched out still; which is repeated from (Isaiah 9:12) . (See Gill on Isaiah 9:12).