481 Hear this, O house of Jacob, who are called by the name of Israel, and who came forth from the loins of Judah; who swear by the name of the Lord, and invoke the God of Israel, but not in truth or right. 2 For they call themselves after the holy city, and lean on the God of Israel; the Lord of hosts is his name. 3 The former things I declared long ago, they went out from my mouth and I made them known; then suddenly I did them and they came to pass. 4 Because I know that you are obstinate, and your neck is an iron sinew and your forehead brass, 5 I declared them to you from long ago, before they came to pass I announced them to you, so that you would not say, "My idol did them, my carved image and my cast image commanded them."
Matthew Henry's Commentary on Isaiah 48:1-5
Commentary on Isaiah 48:1-8
(Read Isaiah 48:1-8)
The Jews valued themselves on descent from Jacob, and used the name of Jehovah as their God. They prided themselves respecting Jerusalem and the temple, yet there was no holiness in their lives. If we are not sincere in religion, we do but take the name of the Lord in vain. By prophecy they were shown how God would deal with them, long before it came to pass. God has said and done enough to prevent men's boasting of themselves, which makes the sin and ruin of the proud worse; sooner or later every mouth shall be stopped, and all become silent before Him. We are all born children of disobedience. Where original sin is, actual sin will follow. Does not the conscience of every man witness to the truth of Scripture? May the Lord prove us, and render us doers of the word.