Luke 6:2

and certain of the Pharisees said to them, 'Why do ye that which is not lawful to do on the sabbaths?'

Matthew 12:2

and the Pharisees having seen, said to him, 'Lo, thy disciples do that which it is not lawful to do on a sabbath.'

Exodus 22:10

When a man doth give unto his neighbour an ass, or ox, or sheep, or any beast to keep, and it hath died, or hath been hurt, or taken captive, none seeing --

Exodus 31:15

Six days is work done, and in the seventh day is a sabbath of holy rest to Jehovah; any who doeth work in the sabbath-day is certainly put to death,

Exodus 35:2

Six days is work done, and on the seventh day there is to you a holy day, a sabbath of rest to Jehovah; any who doeth work in it is put to death;

Numbers 15:32-35

And the sons of Israel are in the wilderness, and they find a man gathering wood on the sabbath-day,

Isaiah 58:13

If thou dost turn from the sabbath thy foot, Doing thine own pleasure on My holy day, And hast cried to the sabbath, 'A delight,' To the holy of Jehovah, 'Honoured,' And hast honoured it, without doing thine own ways, Without finding thine own pleasure, And speaking a word.

Matthew 15:2

'Wherefore do thy disciples transgress the tradition of the elders? for they do not wash their hands when they may eat bread.'

Matthew 23:23-24

Woe to you, Scribes and Pharisees, hypocrites! because ye give tithe of the mint, and the dill, and the cumin, and did neglect the weightier things of the Law -- the judgment, and the kindness, and the faith; these it behoved you to do, and those not to neglect.

Mark 2:24

and the Pharisees said to him, 'Lo, why do they on the sabbaths that which is not lawful?'

Luke 5:33

And they said unto him, 'Wherefore do the disciples of John fast often, and make supplications -- in like manner also those of the Pharisees -- but thine do eat and drink?'

Luke 6:7-9

and the scribes and the Pharisees were watching him, if on the sabbath he will heal, that they might find an accusation against him.

John 5:9-11

and immediately the man became whole, and he took up his couch, and was walking, and it was a sabbath on that day,

John 5:16

and because of this were the Jews persecuting Jesus, and seeking to kill him, because these things he was doing on a sabbath.

John 9:14-16

and it was a sabbath when Jesus made the clay, and opened his eyes.

Treasury of Scripture Knowledge

Summary

And certain of the Pharisees said unto them, Why do ye that which is not lawful to do on the sabbath days?

Bible References

Why

Luke 6:7
and the scribes and the Pharisees were watching him, if on the sabbath he will heal, that they might find an accusation against him.
Luke 5:33
And they said unto him, 'Wherefore do the disciples of John fast often, and make supplications -- in like manner also those of the Pharisees -- but thine do eat and drink?'
Matthew 12:2
and the Pharisees having seen, said to him, 'Lo, thy disciples do that which it is not lawful to do on a sabbath.'
Matthew 15:2
'Wherefore do thy disciples transgress the tradition of the elders? for they do not wash their hands when they may eat bread.'
Matthew 23:23
Woe to you, Scribes and Pharisees, hypocrites! because ye give tithe of the mint, and the dill, and the cumin, and did neglect the weightier things of the Law -- the judgment, and the kindness, and the faith; these it behoved you to do, and those not to neglect.
Mark 2:24
and the Pharisees said to him, 'Lo, why do they on the sabbaths that which is not lawful?'
John 5:9
and immediately the man became whole, and he took up his couch, and was walking, and it was a sabbath on that day,
John 9:14
and it was a sabbath when Jesus made the clay, and opened his eyes.

Not

Exodus 22:10
When a man doth give unto his neighbour an ass, or ox, or sheep, or any beast to keep, and it hath died, or hath been hurt, or taken captive, none seeing --
Exodus 31:15
Six days is work done, and in the seventh day is a sabbath of holy rest to Jehovah; any who doeth work in the sabbath-day is certainly put to death,
Exodus 35:2
Six days is work done, and on the seventh day there is to you a holy day, a sabbath of rest to Jehovah; any who doeth work in it is put to death;
Numbers 15:32
And the sons of Israel are in the wilderness, and they find a man gathering wood on the sabbath-day,
Isaiah 58:13
If thou dost turn from the sabbath thy foot, Doing thine own pleasure on My holy day, And hast cried to the sabbath, 'A delight,' To the holy of Jehovah, 'Honoured,' And hast honoured it, without doing thine own ways, Without finding thine own pleasure, And speaking a word.