Romans 9:32

Wherefore? Because they sought it, not by faith, but as it were by the works of the law: for they stumbled at that stumbling stone;

1 Peter 2:8

And a stone of stumbling, and a rock of offence, to them who stumble, not believing the word, whereunto also they were appointed.

Matthew 13:57

And they were offended at him. But Jesus said to them, A prophet is not without honour, save in his own country, and in his own house.

Matthew 19:16-20

And behold one came and said to him, Good Master, what good thing shall I do, that I may have eternal life?

Luke 2:34

Behold this child is set for the fall and rising again of many in Israel, and for a sign which shall be spoken against,

Luke 7:23

And happy is he, whosoever shall not be offended at me.

John 6:27-29

Labour not for the meat which perisheth, but for that which endureth to everlasting life, which the Son of man will give you; for him hath God the Father sealed.

Acts 16:30-34

And having brought them out he said, Sirs, what must I do to be saved?

Romans 4:16

Therefore it is of faith, that it might be of grace, that the promise might be firm to all the seed; not only to that which is of the law, but to that also which is of the faith of Abraham, who is the father of us all, (As it is written,

Romans 10:3

For they being ignorant of the righteousness of God, and seeking to establish their own righteousness, have not submitted to the righteousness of God.

Romans 11:11

I say then, Have they stumbled so as to fall? God forbid. But by their fall salvation is come to the Gentiles, to provoke them to jealousy.

1 Corinthians 1:23

to the Jews a stumbling block, and to the Greeks foolishness:

1 John 5:9-12

If we receive the testimony of men, the testimony of God is greater; and this is the testimony of God, which he hath testified of 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
Therefore it is of faith, that it might be of grace, that the promise might be firm to all the seed; not only to that which is of the law, but to that also which is of the faith of Abraham, who is the father of us all, (As it is written,
Romans 10:3
For they being ignorant of the righteousness of God, and seeking to establish their own righteousness, have not submitted to the righteousness of God.
Matthew 19:16
And behold one came and said to him, Good Master, what good thing shall I do, that I may have eternal life?
John 6:27
Labour not for the meat which perisheth, but for that which endureth to everlasting life, which the Son of man will give you; for him hath God the Father sealed.
Acts 16:30
And having 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; and this is the testimony of God, which he hath testified of his Son.

They stumbled

Romans 11:11
I say then, Have they stumbled so as to fall? God forbid. But by their fall salvation is come to the Gentiles, to provoke them to jealousy.
Matthew 13:57
And they were offended at him. But Jesus said to them, A prophet is not without honour, save in his own country, and in his own house.
Luke 2:34
Behold this child is set for the fall and rising again of many in Israel, and for a sign which shall be spoken against,
Luke 7:23
And happy is he, whosoever shall not be offended at me.
1 Corinthians 1:23
to the Jews a stumbling block, and to the Greeks foolishness:

General references

Matthew 19:30
But many first shall be last, and the last shall be first.
Mark 10:31
But many that are first shall be last, and the last first.
Luke 7:23
And happy is he, whosoever shall not be offended at me.
Romans 4:4
Now to him that worketh, the reward is not reckoned of grace, but of debt.