A. Merely agreeing is not enough:

EZE 33:30. Also, thou son of man, the children of thy people still are talking against thee by the walls and in the doors of the houses, and speak one to another, every one to his brother, saying, Come, I pray you, and hear what is the word that cometh forth from the LORD.

EZE 33:31. And they come unto thee as the people cometh, and they sit before thee as my people, and they hear thy words, but they will not do them: for with their mouth they shew much love, but their heart goeth after their covetousness.

EZE 33:32. And, lo, thou art unto them as a very lovely song of one that hath a pleasant voice, and can play well on an instrument: for they hear thy words, but they do them not.

EZE 33:33. And when this cometh to pass, (lo, it will come,) then shall they know that a prophet hath been among them.

MAT 21:28. But what think ye? A certain man had two sons; and he came to the first, and said, Son, go work to day in my vineyard.

MAT 21:29. He answered and said, I will not: but afterward he repented, and went.

MAT 21:30. And he came to the second, and said likewise. And he answered and said, I go, sir: and went not.

MAT 21:31. Whether of them twain did the will of his father? They say unto him, The first. Jesus saith unto them, Verily I say unto you, That the publicans and the harlots go into the kingdom of God before you.

MAT 23:2. Saying The scribes and the Pharisees sit in Moses' seat:

MAT 23:3. All therefore whatsoever they bid you observe, that observe and do; but do not ye after their works: for they say, and do not.

LUK 6:46. And why call ye me, Lord, Lord, and do not the things which I say?

TIT 1:16. They profess that they know God; but in works they deny him, being abominable, and disobedient, and unto every good work reprobate.

JER 42:1. Then all the captains of the forces, and Johanan the son of Kareah, and Jezaniah the son of Hoshaiah, and all the people from the least even unto the greatest, came near,

JER 42:2. And said unto Jeremiah the prophet, Let, we beseech thee, our supplication be accepted before thee, and pray for us unto the LORD thy God, even for all this remnant; (for we are left but a few of many, as thine eyes do behold us:)

JER 42:3. That the LORD thy God may shew us the way wherein we may walk, and the thing that we may do.

JER 42:4. Then Jeremiah the prophet said unto them, I have heard you; behold, I will pray unto the LORD your God according to your words; and it shall come to pass, that whatsoever thing the LORD shall answer you, I will declare it unto you; I will keep nothing back from you.

JER 42:5. Then they said to Jeremiah, The LORD be a true and faithful witness between us, if we do not even according to all things for the which the LORD thy God shall send thee to us.

JER 42:6. Whether it be good, or whether it be evil, we will obey the voice of the LORD our God, to whom we send thee; that it may be well with us, when we obey the voice of the LORD our God.

JER 42:7. And it came to pass after ten days, that the word of the LORD came unto Jeremiah.

JER 42:8. Then called he Johanan the son of Kareah, and all the captains of the forces which were with him, and all the people from the least even to the greatest,

JER 42:9. And said unto them, Thus saith the LORD, the God of Israel, unto whom ye sent me to present your supplication before him;

JER 42:10. If ye will still abide in this land, then will I build you, and not pull you down, and I will plant you, and not pluck you up: for I repent me of the evil that I have done unto you.

JER 42:11. Be not afraid of the king of Babylon, of whom ye are afraid; be not afraid of him, saith the LORD: for I am with you to save you, and to deliver you from his hand.

JER 42:12. And I will shew mercies unto you, that he may have mercy upon you, and cause you to return to your own land.

JER 42:13. But if ye say, We will not dwell in this land, neither obey the voice of the LORD your God,

JER 42:14. Saying, No; but we will go into the land of Egypt, where we shall see no war, nor hear the sound of the trumpet, nor have hunger of bread; and there will we dwell:

JER 42:15. And now therefore hear the word of the LORD, ye remnant of Judah; Thus saith the LORD of hosts, the God of Israel; If ye wholly set your faces to enter into Egypt, and go to sojourn there;

JER 42:16. Then it shall come to pass, that the sword, which ye feared, shall overtake you there in the land of Egypt, and the famine, whereof ye were afraid, shall follow close after you there in Egypt; and there ye shall die.

JER 42:17. So shall it be with all the men that set their faces to go into Egypt to sojourn there; they shall die by the sword, by the famine, and by the pestilence: and none of them shall remain or escape from the evil that I will bring upon them.

JER 42:18. For thus saith the LORD of hosts, the God of Israel; As mine anger and my fury hath been poured forth upon the inhabitants of Jerusalem; so shall my fury be poured forth upon you, when ye shall enter into Egypt: and ye shall be an execration, and an astonishment, and a curse, and a reproach; and ye shall see this place no more.

JER 42:19. The LORD hath said concerning you, O ye remnant of Judah; Go ye not into Egypt: know certainly that I have admonished you this day.

JER 42:20. For ye dissembled in your hearts, when ye sent me unto the LORD your God, saying, Pray for us unto the LORD our God; and according unto all that the LORD our God shall say, so declare unto us, and we will do it.

JER 42:21. And now I have this day declared it to you; but ye have not obeyed the voice of the LORD your God, nor any thing for the which he hath sent me unto you.

JER 42:22. Now therefore know certainly that ye shall die by the sword, by the famine, and by the pestilence, in the place whither ye desire to go and to sojourn.

JER 43:1. And it came to pass, that when Jeremiah had made an end of speaking unto all the people all the words of the LORD their God, for which the LORD their God had sent him to them, even all these words,

JER 43:2. Then spake Azariah the son of Hoshaiah, and Johanan the son of Kareah, and all the proud men, saying unto Jeremiah, Thou speakest falsely: the LORD our God hath not sent thee to say, Go not into Egypt to sojourn there:

JER 43:3. But Baruch the son of Neriah setteth thee on against us, for to deliver us into the hand of the Chaldeans, that they might put us to death, and carry us away captives into Babylon.

JER 43:4. So Johanan the son of Kareah, and all the captains of the forces, and all the people, obeyed not the voice of the LORD, to dwell in the land of Judah.

B. "Good works" not a substitute for obedience:

1SA 15:22. And Samuel said, Hath the LORD as great delight in burnt offerings and sacrifices, as in obeying the voice of the LORD? Behold, to obey is better than sacrifice, and to hearken than the fat of rams.

JER 7:22. For I spake not unto your fathers, nor commanded them in the day that I brought them out of the land of Egypt, concerning burnt offerings or sacrifices:

JER 7:23. But this thing commanded I them, saying, Obey my voice, and I will be your God, and ye shall be my people: and walk ye in all the ways that I have commanded you, that it may be well unto you.

MAT 7:22. Many will say to me in that day, Lord, Lord, have we not prophesied in thy name? and in thy name have cast out devils? and in thy name done many wonderful works?

MAT 7:23. And then will I profess unto them, I never knew you: depart from me, ye that work iniquity.

LUK 11:42. But woe unto you, Pharisees! for ye tithe mint and rue and all manner of herbs, and pass over judgment and the love of God: these ought ye to have done, and not to leave the other undone.

C. Half-hearted obedience:

2CH 25:2. And he did that which was right in the sight of the LORD, but not with a perfect heart.

JER 3:10. And yet for all this her treacherous sister Judah hath not turned unto me with her whole heart, but feignedly, saith the LORD.

ACT 5:1. But a certain man named Ananias, with Sapphira his wife, sold a possession,

ACT 5:2. And kept back part of the price, his wife also being privy to it, and brought a certain part, and laid it at the apostles' feet.

ACT 5:3. But Peter said, Ananias, why hath Satan filled thine heart to lie to the Holy Ghost, and to keep back part of the price of the land?

ACT 5:4. Whiles it remained, was it not thine own? and after it was sold, was it not in thine own power? why hast thou conceived this thing in thine heart? thou hast not lied unto men, but unto God.

ACT 5:5. And Ananias hearing these words fell down, and gave up the ghost: and great fear came on all them that heard these things.

ACT 5:6. And the young men arose, wound him up, and carried him out, and buried him.

ACT 5:7. And it was about the space of three hours after, when his wife, not knowing what was done, came in.

ACT 5:8. And Peter answered unto her, Tell me whether ye sold the land for so much? And she said, Yea, for so much.

ACT 5:9. Then Peter said unto her, How is it that ye have agreed together to tempt the Spirit of the Lord? behold, the feet of them which have buried thy husband are at the door, and shall carry thee out.

ACT 5:10. Then fell she down straightway at his feet, and yielded up the ghost: and the young men came in, and found her dead, and, carrying her forth, buried her by her husband.