13 The Lord says: "These people come near to me with their mouth and honor me with their lips, but their hearts are far from me. Their worship of me is based on merely human rules they have been taught.
4 Do not trust in deceptive words and say, "This is the temple of the Lord, the temple of the Lord, the temple of the Lord!"
(Read Jeremiah 7:1-16)
No observances, professions, or supposed revelations, will profit, if men do not amend their ways and their doings. None can claim an interest in free salvation, who allow themselves in the practice of known sin, or live in the neglect of known duty. They thought that the temple they profaned would be their protection. But all who continue in sin because grace has abounded, or that grace may abound, make Christ the minister of sin; and the cross of Christ, rightly understood, forms the most effectual remedy to such poisonous sentiments. The Son of God gave himself for our transgressions, to show the excellence of the Divine law, and the evil of sin. Never let us think we may do wickedness without suffering for it.
Matthew Henry's Commentary on Isaiah 29:13
Commentary on Isaiah 29:9-16
(Read Isaiah 29:9-16)
The security of sinners in sinful ways, is cause for lamentation and wonder. The learned men, through prejudice, said that the Divine prophecies were obscure; and the poor urged their want of learning. The Bible is a sealed book to every man, learned or unlearned, till he begins to study it with a simple heart and a teachable spirit, that he may thence learn the truth and the will of God. To worship God, is to approach him. And if the heart be full of his love and fear, out of the abundance of it the mouth will speak; but there are many whose religion is lip-labour only. When they pretend to be speaking to God, they are thinking of a thousand foolish things. They worship the God of Israel according to their own devices. Numbers are only formal in worship. And their religion is only to comply with custom, and to serve their own interest. But the wanderings of mind, and defects in devotion, which are the believer's burden, are very different from the withdrawing of the heart from God, so severely blamed. And those who make religion no more than a pretence, to serve a turn, deceive themselves. And as those that quarrel with God, so those that think to conceal themselves from him, in effect charge him with folly. But all their perverse conduct shall be entirely done away.