Romans 9:32

Why? Because they did not pursue it by faith, but as though it were by works. They stumbled over the stumbling stone,

1 Peter 2:8

and,
A stone of stumbling and a rock of offense”;
for they stumble because they are disobedient to the word, and to this doom they were also appointed.

Matthew 13:57

And they took offense at Him. But Jesus said to them, A prophet is not without honor except in his hometown and in his own household.”

Matthew 19:16-20

And someone came to Him and said, “Teacher, what good thing shall I do that I may obtain eternal life?”

Luke 2:34

And Simeon blessed them and said to Mary His mother, “Behold, this Child is appointed for the fall and rise of many in Israel, and for a sign to be opposed—

Luke 7:23

Blessed is he who does not take offense at Me.”

John 6:27-29

Do not work for the food which perishes, but for the food which endures to eternal life, which the Son of Man will give to you, for on Him the Father, God, has set His seal.”

Acts 16:30-34

and after he brought them out, he said, “Sirs, what must I do to be saved?”

Romans 4:16

For this reason it is by faith, in order that it may be in accordance with grace, so that the promise will be guaranteed to all the descendants, not only to those who are of the Law, but also to those who are of the faith of Abraham, who is the father of us all,

Romans 10:3

For not knowing about God’s righteousness and seeking to establish their own, they did not subject themselves to the righteousness of God.

Romans 11:11

I say then, they did not stumble so as to fall, did they? May it never be! But by their transgression salvation has come to the Gentiles, to make them jealous.

1 Corinthians 1:23

but we preach Christ crucified, to Jews a stumbling block and to Gentiles foolishness,

1 John 5:9-12

If we receive the testimony of men, the testimony of God is greater; for the testimony of God is this, that He has testified concerning His Son.

Treasury of Scripture Knowledge

Summary

Wherefore? Because they sought it not by faith, but as it were by the works of the law. For they stumbled at that stumblingstone;

Bible References

Because

Romans 4:16
For this reason it is by faith, in order that it may be in accordance with grace, so that the promise will be guaranteed to all the descendants, not only to those who are of the Law, but also to those who are of the faith of Abraham, who is the father of us all,
Romans 10:3
For not knowing about God’s righteousness and seeking to establish their own, they did not subject themselves to the righteousness of God.
Matthew 19:16
And someone came to Him and said, “Teacher, what good thing shall I do that I may obtain eternal life?”
John 6:27
Do not work for the food which perishes, but for the food which endures to eternal life, which the Son of Man will give to you, for on Him the Father, God, has set His seal.”
Acts 16:30
and after he brought them out, he said, “Sirs, what must I do to be saved?”
1 John 5:9
If we receive the testimony of men, the testimony of God is greater; for the testimony of God is this, that He has testified concerning His Son.

They stumbled

Romans 11:11
I say then, they did not stumble so as to fall, did they? May it never be! But by their transgression salvation has come to the Gentiles, to make them jealous.
Matthew 13:57
And they took offense at Him. But Jesus said to them, A prophet is not without honor except in his hometown and in his own household.”
Luke 2:34
And Simeon blessed them and said to Mary His mother, “Behold, this Child is appointed for the fall and rise of many in Israel, and for a sign to be opposed—
Luke 7:23
Blessed is he who does not take offense at Me.”
1 Corinthians 1:23
but we preach Christ crucified, to Jews a stumbling block and to Gentiles foolishness,

General references

Matthew 19:30
But many who are first will be last; and the last, first.
Mark 10:31
But many who are first will be last, and the last, first.”
Luke 7:23
Blessed is he who does not take offense at Me.”
Romans 4:4
Now to the one who works, his wage is not credited as a favor, but as what is due.