Luke 6:4

how he entered into the house of God and took the bread of the presentation, which it is not permitted to eat (except the priests alone), [and] ate [it] and gave [it] to those with him?"

Leviticus 24:5-9

"And you shall take finely milled flour, and you shall bake [with] it twelve ring-shaped bread cakes: each one [shall be] two-tenths [of an ephah].

Treasury of Scripture Knowledge

Summary

How he went into the house of God, and did take and eat the shewbread, and gave also to them that were with him; which it is not lawful to eat but for the priests alone?

Bible References

Which

Leviticus 24:5
"And you shall take finely milled flour, and you shall bake [with] it twelve ring-shaped bread cakes: each one [shall be] two-tenths [of an ephah].