We cannot tell
Matthew 15:14
Let them alone: they be blind leaders of the blind. And if the blind lead the blind, both shall fall into the ditch.
Matthew 16:3
And in the morning, It will be foul weather to day: for the sky is red and lowring. O ye hypocrites, ye can discern the face of the sky; but can ye not discern the signs of the times?
Matthew 23:16-28
16
Woe unto you, ye blind guides, which say, Whosoever shall swear by the temple, it is nothing; but whosoever shall swear by the gold of the temple, he is a debtor!
17
Ye fools and blind: for whether is greater, the gold, or the temple that sanctifieth the gold?
18
And, Whosoever shall swear by the altar, it is nothing; but whosoever sweareth by the gift that is upon it, he is guilty.
19
Ye fools and blind: for whether is greater, the gift, or the altar that sanctifieth the gift?
20
Whoso therefore shall swear by the altar, sweareth by it, and by all things thereon.
21
And whoso shall swear by the temple, sweareth by it, and by him that dwelleth therein.
22
And he that shall swear by heaven, sweareth by the throne of God, and by him that sitteth thereon.
23
Woe unto you, scribes and Pharisees, hypocrites! for ye pay tithe of mint and anise and cummin, and have omitted the weightier matters of the law, judgment, mercy, and faith: these ought ye to have done, and not to leave the other undone.
24
Ye blind guides, which strain at a gnat, and swallow a camel.
25
Woe unto you, scribes and Pharisees, hypocrites! for ye make clean the outside of the cup and of the platter, but within they are full of extortion and excess.
26
Thou blind Pharisee, cleanse first that which is within the cup and platter, that the outside of them may be clean also.
27
Woe unto you, scribes and Pharisees, hypocrites! for ye are like unto whited sepulchres, which indeed appear beautiful outward, but are within full of dead men's bones, and of all uncleanness.
28
Even so ye also outwardly appear righteous unto men, but within ye are full of hypocrisy and iniquity.
Isaiah 6:10
Make the heart of this people fat, and make their ears heavy, and shut their eyes; lest they see with their eyes, and hear with their ears, and understand with their heart, and convert, and be healed.
Isaiah 28:9
Whom shall he teach knowledge? and whom shall he make to understand doctrine? them that are weaned from the milk, and drawn from the breasts.
Isaiah 29:10-12
10
For the LORD hath poured out upon you the spirit of deep sleep, and hath closed your eyes: the prophets and your rulers, the seers hath he covered.
11
And the vision of all is become unto you as the words of a book that is sealed, which men deliver to one that is learned, saying, Read this, I pray thee: and he saith, I cannot; for it is sealed:
12
And the book is delivered to him that is not learned, saying, Read this, I pray thee: and he saith, I am not learned.
Isaiah 42:19
Who is blind, but my servant? or deaf, as my messenger that I sent? who is blind as he that is perfect, and blind as the LORD'S servant?
Isaiah 42:20
Seeing many things, but thou observest not; opening the ears, but he heareth not.
Isaiah 56:10
His watchmen are blind: they are all ignorant, they are all dumb dogs, they cannot bark; sleeping, lying down, loving to slumber.
Isaiah 56:11
Yea, they are greedy dogs which can never have enough, and they are shepherds that cannot understand: they all look to their own way, every one for his gain, from his quarter.
Jeremiah 8:7-9
7
Yea, the stork in the heaven knoweth her appointed times; and the turtle and the crane and the swallow observe the time of their coming; but my people know not the judgment of the LORD.
8
How do ye say, We are wise, and the law of the LORD is with us? Lo, certainly in vain made he it; the pen of the scribes is in vain.
9
The wise men are ashamed, they are dismayed and taken: lo, they have rejected the word of the LORD; and what wisdom is in them?
Malachi 2:6-9
6
The law of truth was in his mouth, and iniquity was not found in his lips: he walked with me in peace and equity, and did turn many away from iniquity.
7
For the priest's lips should keep knowledge, and they should seek the law at his mouth: for he is the messenger of the LORD of hosts.
8
But ye are departed out of the way; ye have caused many to stumble at the law; ye have corrupted the covenant of Levi, saith the LORD of hosts.
9
Therefore have I also made you contemptible and base before all the people, according as ye have not kept my ways, but have been partial in the law.
Luke 20:7
And they answered, that they could not tell whence it was.
Luke 20:8
And Jesus said unto them, Neither tell I you by what authority I do these things.
John 9:30
The man answered and said unto them, Why herein is a marvellous thing, that ye know not from whence he is, and yet he hath opened mine eyes.
John 9:40
And some of the Pharisees which were with him heard these words, and said unto him, Are we blind also?
John 9:41
Jesus said unto them, If ye were blind, ye should have no sin: but now ye say, We see; therefore your sin remaineth.
Romans 1:18-22
18
For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who hold the truth in unrighteousness;
19
Because that which may be known of God is manifest in them; for God hath shewed it unto them.
20
For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made, even his eternal power and Godhead; so that they are without excuse:
21
Because that, when they knew God, they glorified him not as God, neither were thankful; but became vain in their imaginations, and their foolish heart was darkened.
22
Professing themselves to be wise, they became fools,
Romans 1:28-22
2 Corinthians 4:3
But if our gospel be hid, it is hid to them that are lost:
2 Thessalonians 2:9
Even him, whose coming is after the working of Satan with all power and signs and lying wonders,
2 Thessalonians 2:10
And with all deceivableness of unrighteousness in them that perish; because they received not the love of the truth, that they might be saved.