Matthew 12:4

He entered the house of God [i.e., the Temple] and ate the 'Bread of Presence', which was not permissible, according to the law of Moses, for him or those with him to do, since it was reserved only for the priests.

Mark 2:26

Or how he entered the house of God [i.e., the Temple] when Abiathar was head priest, and ate the 'Bread of Presence' which was not permissible, according to the law of Moses, for anyone but priests? He even gave [some of it] to those who were with him."

Luke 6:4

how he entered the house of God [i.e., the Temple] and took some 'Bread of Presence' and ate it, and also gave some to his men to eat? [This practice] was not permissible according to the law of Moses, [since the bread was reserved] only for the priests."

Treasury of Scripture Knowledge

Summary

And it shall be Aaron's and his sons'; and they shall eat it in the holy place: for it is most holy unto him of the offerings of the LORD made by fire by a perpetual statute.

Bible References

Aaron's

Matthew 12:4
He entered the house of God [i.e., the Temple] and ate the 'Bread of Presence', which was not permissible, according to the law of Moses, for him or those with him to do, since it was reserved only for the priests.
Mark 2:26
Or how he entered the house of God [i.e., the Temple] when Abiathar was head priest, and ate the 'Bread of Presence' which was not permissible, according to the law of Moses, for anyone but priests? He even gave [some of it] to those who were with him."
Luke 6:4
how he entered the house of God [i.e., the Temple] and took some 'Bread of Presence' and ate it, and also gave some to his men to eat? [This practice] was not permissible according to the law of Moses, [since the bread was reserved] only for the priests."