Mark 12:28

And one of the scribes came up [and] heard them debating. [When he] saw that he answered them well, he asked him, "Which commandment is the most important of all?"

Matthew 22:34-40

Now [when] the Pharisees heard that he had silenced the Sadducees, they assembled at the same [place].

Luke 10:25-28

And behold, a certain legal expert stood up to test him, saying, "Teacher, what must I do so that I will inherit eternal life?"

Luke 20:39

And some of the scribes answered [and] said, "Teacher, you have spoken well."

Matthew 5:19

Therefore whoever abolishes one of the least of these commandments and teaches people to do so will be called least in the kingdom of heaven, but whoever keeps [them] and teaches [them], this person will be called great in the kingdom of heaven.

Matthew 19:18

He said to him, "Which [ones]?" And Jesus said, "Do not commit murder, do not commit adultery, do not steal, do not give false testimony,

Matthew 23:23

"Woe to you, scribes and Pharisees--hypocrites!--because you pay a tenth of mint and dill and cumin, and neglect the more important [matters] of the law--justice and mercy and faithfulness! It was necessary to do these [things] {while not neglecting those}.

Luke 11:42

"But woe to you, Pharisees, because you pay a tenth of mint and rue and every garden herb, and neglect justice and love for God! But it was necessary to do these [things] without neglecting those things also.

Treasury of Scripture Knowledge

Summary

And one of the scribes came, and having heard them reasoning together, and perceiving that he had answered them well, asked him, Which is the first commandment of all?

General references

Bible References

One

Matthew 22:34
Now [when] the Pharisees heard that he had silenced the Sadducees, they assembled at the same [place].

Which

Matthew 5:19
Therefore whoever abolishes one of the least of these commandments and teaches people to do so will be called least in the kingdom of heaven, but whoever keeps [them] and teaches [them], this person will be called great in the kingdom of heaven.
Matthew 19:18
He said to him, "Which [ones]?" And Jesus said, "Do not commit murder, do not commit adultery, do not steal, do not give false testimony,
Matthew 23:23
"Woe to you, scribes and Pharisees--hypocrites!--because you pay a tenth of mint and dill and cumin, and neglect the more important [matters] of the law--justice and mercy and faithfulness! It was necessary to do these [things] {while not neglecting those}.
Luke 11:42
"But woe to you, Pharisees, because you pay a tenth of mint and rue and every garden herb, and neglect justice and love for God! But it was necessary to do these [things] without neglecting those things also.

General references

Matthew 22:36
"Teacher, which commandment [is] greatest in the law?"